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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1415650669

Certificate GIA 1415650669

Diamond specifications and retailer prices

From €446 EUR
$500 USD
As of November 2, 2026
Save €533 EUR (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €978 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-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 1415650669. Listed at 7 retailers as of November 1, 2026, with prices from €446 to €978, a €533 spread on the same certified stone. MOH London lists it at €978. 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

0.31
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1415650669
Dimensions3.90 × 3.74 × 2.52 mm
L/W Ratio1.04
Culet sizeNone
Top View
3.90 mm3.74 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1415650669
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €978 EUR|Low: €434 EUR|High: €990 EUR|Avg: €615 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5€446 EUR
Retailer 2€464 EUR
Retailer 7€466 EUR
Retailer 8€480 EUR
Retailer 3€652 EUR
Retailer 4€672 EUR
Retailer 6€694 EUR
MOH London€978 EUR

43 data points across 8 retailers

7 retailers€446 EUR to €978 EUR

A
Cheapest Retailer
-
€446 EUR
$500 USD
B+
Retailer 2
-
€464 EUR
£410 GBP
View
B+
Retailer 3
-
€466 EUR
$523 USD
View
B+
Retailer 4
-
€652 EUR
View
B+
Retailer 5
-
€672 EUR
ZAR 12,174 ZAR
View
Retailer 6
-
€694 EUR
A$1,198 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
51E4744FC · Nov 1
€978 EUR
£864 GBP
View
6 more retailers have this diamond
Prices start from €446 EURSave up to €533 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.

A
0.31ct Cushion
€446 EUR