Find Your Perfect Diamond
Made to sit flush against the engagement ring it was designed for.
Every ring is made from start to finish in our Los Angeles atelier.
Color is graded face down in a laboratory and worn face up on a hand. Everything worth knowing about the scale, including where the value hides, lives in the gap between those two positions.
A laboratory grader places the loose diamond table down, pavilion up, beside a set of master stones under controlled light, and judges the depth of its body color against them. That is the entire method, and it is deliberately the most unflattering view a diamond has: face down, its brilliance is silenced and its body color has nowhere to hide. The GIA began the scale at D, skipping the A, B, and C of older, looser systems, so its top grade could never be confused with anything that came before.
You will never see your diamond that way again. Mounted and face up, brilliance scrambles body color, metal reflects into the stone, and skin warms everything beside it. Grades that stand clearly apart on the grading tray become identical twins on a hand, which is precisely why the scale rewards buyers who understand what it does and does not measure.
D through F are colorless, G through J near colorless, K onward faint color. Each grade below links to its own honest guide.
| Grade | Band | The Honest Verdict |
|---|---|---|
| D | Colorless | The absolute top. A rarity you own more than a whiteness you see; lab grown stones make it rational. |
| E | Colorless | D for people who checked what D costs. Identical to the eye, kinder on the invoice. |
| F | Colorless | The last grade the certificate calls colorless, and the most sensible price the word is sold for. |
| G | Near Colorless | The value inflection. White face up in every metal, priced just outside the colorless toll. |
| H | Near Colorless | The trade's own default. The last grade that reads white everywhere, the first that lets the budget breathe. |
| I | Near Colorless | Warmth priced as a flaw, worn as a feature in yellow or rose gold round brilliants. |
| J | Near Colorless | The gold setting grade. Glows in yellow gold, confesses in platinum; the setting decides everything. |
| K | Faint Color | Expert territory and our floor for center stones: warm metal, round brilliant, modest size, reviewed face up. |
Below K, warmth deepens past what setting and faceting can gracefully absorb; K is the warmest grade we set as a center stone.
The market prices the laboratory view. You live with the hand view. Three facts about that gap decide where every smart color budget lands.
Color is judged with brilliance silenced, against master stones, by trained eyes. The letters are real, precise, and measured in a position your ring will never occupy.
Face up, brilliance scrambles warmth, metal tints the stone, and adjacent grades collapse into each other. For most rings the eye stops distinguishing around G.
Every grade below the point where your setting stops showing color is paper you do not need. Moving that money into cut and carat is the whole game.
Every stone we recommend is scored by ROSI™, our gemological intelligence, built by our gemologists, with color verified by a human eye against the actual stone. Request a ROSI™ Score Report on any diamond, ours or anyone else’s.
| Metal | Recommended Range | Why |
|---|---|---|
| Platinum & White Gold | G and above | Cool metal mirrors the stone; warmth below G becomes findable, especially at size. |
| Yellow Gold | H through J, select K | The metal's warmth absorbs the stone's; colorless premiums disappear into the gold. |
| Rose Gold | H through K | The most forgiving metal on the scale; warmth reads as harmony rather than tint. |
Shape moves the line as well: round brilliants conceal warmth best, while emerald, asscher, and large elongated ovals display body color openly and reward a grade or two higher. The shape guides in our education library carry the specifics, and our settings put both halves of the decision in one place.
Color is graded in the one position you will never see your diamond in again.
The scale is honest about what it measures and silent about what you will see, and the industry has profited from that silence for decades. Our position is simple: we tell you where your setting and shape stop showing color, we hold the line at K for center stones, and we move the difference into the cut quality that actually manufactures beauty. The certificate letter is real. So is the fact that nobody at the table can read it off her hand.
Found a diamond you are considering, here or anywhere else? Send the GIA or IGI certificate number and our gemological team returns its ROSI™ Score and a read of where it sits in the current market. Complimentary, within minutes.
Score a DiamondWhere stones of the same exact specifications are trading on the open market right now. You get a straight answer, even when the diamond is not ours.
John Anderson, our Lead Gemologist, matches color grades to settings, shapes, and budgets for clients every day. Tell him the ring you want and he will tell you the highest grade worth paying for and the exact point where the next letter stops earning its keep. The consultation is complimentary and there is no obligation.
1-800-779-1726