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Cushion|Natural|GIA

0.31ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2557871850

Certificate GIA 2557871850

Diamond specifications and retailer prices

From €307 EUR
$344 USD
As of November 1, 2026
Save €442 EUR (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €748 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557871850. Listed at 9 retailers as of November 1, 2026, with prices from €307 to €748, a €442 spread on the same certified stone. MOH London lists it at €748. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557871850
Dimensions3.89 × 3.71 × 2.55 mm
L/W Ratio1.05
Key to symbols
Crystal
Top View
3.89 mm3.71 mm0.31 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557871850
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.7%

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 1
Current: €748 EUR|Low: €307 EUR|High: €752 EUR|Avg: €550 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8€307 EUR
Retailer 7€349 EUR
Retailer 3€421 EUR
Retailer 6€444 EUR
Retailer 5€503 EUR
Retailer 9€516 EUR
Retailer 4€596 EUR
Retailer 2€656 EUR
MOH London€748 EUR

37 data points across 9 retailers

9 retailers€307 EUR to €748 EUR

A
Cheapest Retailer
-
€307 EUR
$344 USD
B+
Retailer 2
-
€349 EUR
$392 USD
View
B
Retailer 3
-
€421 EUR
£372 GBP
View
B+
Retailer 4
-
€444 EUR
£392 GBP
View
B
Retailer 5
-
€503 EUR
ZAR 9,108 ZAR
View
Retailer 6
-
€516 EUR
A$890 AUD
View
Price last confirmed 30 days ago
B
Retailer 7
-
€596 EUR
View
B
Retailer 8
-
€656 EUR
£579 GBP
View
Most Expensive
B
MOH London
073C9E438 · Nov 2
€748 EUR
£661 GBP
View
8 more retailers have this diamond
Prices start from €307 EURSave up to €442 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
€307 EUR