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Radiant|Natural|GIA

0.51ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6223495631

Certificate GIA 6223495631

Diamond specifications and retailer prices

From €987 EUR
$1,103 USD
As of October 31, 2026
Save €480 EUR (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,467 EUR at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6223495631. Listed at 2 retailers as of October 31, 2026, with prices from €987 to €1,467, a €480 spread on the same certified stone. 77 Diamonds lists it at €1,467. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6223495631
Dimensions6.16 × 3.87 × 2.53 mm
L/W Ratio1.59
Top View
6.16 mm3.87 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 6223495631
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCuletDepth 65.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €1,467 EUR|Low: €973 EUR|High: €1,469 EUR|Avg: €1,220 EUR|+2.3%
77 Diamonds
Retailer 2
October 31, 2026
Retailer 2€987 EUR
77 Diamonds€1,467 EUR

33 data points across 2 retailers

2 retailers€987 EUR to €1,467 EUR

B
Cheapest Retailer
-
€987 EUR
$1,103 USD
Most Expensive
B
77 Diamonds
RADZVSHGMDFT · Oct 31
€1,467 EUR
£1,291 GBP
View
1 more retailer has this diamond
Prices start from €987 EURSave up to €480 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
0.51ct Radiant
€987 EUR