CaratHunter
Plans
Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 6302501392

Certificate GIA 6302501392

Diamond specifications and retailer prices

From €972 EUR
As of November 5, 2026
Save €1,054 EUR (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €2,026 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6302501392. Listed at 8 retailers as of November 4, 2026, with prices from €972 to €2,026, a €1,054 spread on the same certified stone. MOH London lists it at €2,026. 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6302501392
Dimensions4.65 × 4.43 × 3.01 mm
L/W Ratio1.05
Top View
4.65 mm4.43 mm0.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6302501392
Side View
Table 64.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €2,026 EUR|Low: €427 EUR|High: €2,055 EUR|Avg: €1,289 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4€427 EUR
Retailer 3€1,266 EUR
Retailer 2€1,448 EUR
MOH London€2,026 EUR

41 data points across 4 retailers

8 retailers€972 EUR to €2,026 EUR

B+
Cheapest Retailer
-
€972 EUR
B
Retailer 2
-
€1,254 EUR
View
B
Retailer 3
-
€1,254 EUR
View
B
Retailer 4
-
€1,266 EUR
View
B
Retailer 5
-
€1,299 EUR
View
B
Retailer 6
-
€1,448 EUR
View
B
Retailer 7
-
€1,824 EUR
View
Most Expensive
B
MOH London
28F4671AA · Nov 4
€2,026 EUR
£1,781 GBP
View
7 more retailers have this diamond
Prices start from €972 EURSave up to €1,054 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 Cushion
€972 EUR