Cushion|Natural|GIA

0.31ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2558185031

Certificate GIA 2558185031

Diamond specifications and retailer prices

From €151 EUR
₹16,049 INR
As of November 1, 2026
Save €352 EUR (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €502 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 J 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 2558185031. Listed at 9 retailers as of November 1, 2026, with prices from €151 to €502, a €352 spread on the same certified stone. MOH London lists it at €502. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2558185031
Dimensions3.87 × 3.85 × 2.64 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
3.87 mm3.85 mm0.31 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2558185031
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

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: €502 EUR|Low: €150 EUR|High: €516 EUR|Avg: €339 EUR|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3€151 EUR
Retailer 6€234 EUR
Retailer 7€251 EUR
Retailer 5€337 EUR
Retailer 2€338 EUR
Retailer 8€362 EUR
Retailer 9€375 EUR
Retailer 4€430 EUR
MOH London€502 EUR

38 data points across 9 retailers

9 retailers€151 EUR to €502 EUR

A
Cheapest Retailer
-
€151 EUR
₹16,049 INR
B+
Retailer 2
-
€234 EUR
$261 USD
View
B+
Retailer 3
-
€251 EUR
$280 USD
View
B+
Retailer 4
-
€337 EUR
ZAR 6,081 ZAR
View
B+
Retailer 5
-
€338 EUR
£297 GBP
View
B
Retailer 6
-
€362 EUR
$404 USD
View
Retailer 7
-
€375 EUR
A$645 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
€430 EUR
View
Most Expensive
B
MOH London
84E5E8465 · Nov 1
€502 EUR
£442 GBP
View
8 more retailers have this diamond
Prices start from €151 EURSave up to €352 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
€151 EUR