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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6555180814

Certificate GIA 6555180814

Diamond specifications and retailer prices

From €267 EUR
₹28,480 INR
As of November 2, 2026
Save €589 EUR (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €856 EUR at MOH London · As of November 2, 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 6555180814. Listed at 11 retailers as of November 2, 2026, with prices from €267 to €856, a €589 spread on the same certified stone. MOH London lists it at €856. 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
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555180814
Dimensions3.84 × 3.82 × 2.55 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
3.84 mm3.82 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555180814
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 66.8%

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: €856 EUR|Low: €266 EUR|High: €866 EUR|Avg: €546 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2€267 EUR
Retailer 6€399 EUR
Retailer 3€459 EUR
Retailer 7€508 EUR
Retailer 5€575 EUR
Retailer 8€594 EUR
Retailer 4€596 EUR
MOH London€856 EUR

36 data points across 8 retailers

11 retailers€267 EUR to €856 EUR

A
Cheapest Retailer
-
€267 EUR
₹28,480 INR
A
Retailer 2
-
€399 EUR
$448 USD
View
B+
Retailer 3
-
€428 EUR
$480 USD
View
B+
Retailer 4
-
€459 EUR
£405 GBP
View
B+
Retailer 5
-
€491 EUR
$551 USD
View
B+
Retailer 6
-
€508 EUR
£449 GBP
View
B+
Retailer 7
-
€530 EUR
$594 USD
View
B+
Retailer 8
-
€575 EUR
ZAR 10,412 ZAR
View
Retailer 9
-
€594 EUR
A$1,024 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
€596 EUR
View
Most Expensive
B
MOH London
993528188 · Nov 2
€856 EUR
£756 GBP
View
10 more retailers have this diamond
Prices start from €267 EURSave up to €589 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
€267 EUR