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Cushion|Natural|GIA

0.31ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2558185031

Certificate GIA 2558185031

Diamond specifications and retailer prices

From HK$1,322 HKD
₹16,044 INR
As of November 2, 2026
Save HK$3,082 HKD (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$4,404 HKD 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 HK$1,322 to HK$4,404, a HK$3,082 spread on the same certified stone. MOH London lists it at HK$4,404. 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
Colour
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 2
Current: HK$4,404 HKD|Low: HK$1,319 HKD|High: HK$4,524 HKD|Avg: HK$2,979 HKD|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2HK$1,322 HKD
Retailer 6HK$2,048 HKD
Retailer 7HK$2,197 HKD
Retailer 5HK$2,953 HKD
Retailer 3HK$2,961 HKD
Retailer 8HK$3,170 HKD
Retailer 9HK$3,289 HKD
Retailer 4HK$3,765 HKD
MOH LondonHK$4,404 HKD

37 data points across 9 retailers

9 retailersHK$1,322 HKD to HK$4,404 HKD

A
Cheapest Retailer
-
HK$1,322 HKD
₹16,044 INR
B+
Retailer 2
-
HK$2,048 HKD
$261 USD
View
B+
Retailer 3
-
HK$2,197 HKD
$280 USD
View
B+
Retailer 4
-
HK$2,953 HKD
ZAR 6,081 ZAR
View
B+
Retailer 5
-
HK$2,961 HKD
£297 GBP
View
B
Retailer 6
-
HK$3,170 HKD
$404 USD
View
Retailer 7
-
HK$3,289 HKD
A$645 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
HK$3,765 HKD
€457 EUR
View
Most Expensive
B
MOH London
84E5E8465 · Nov 1
HK$4,404 HKD
£442 GBP
View
8 more retailers have this diamond
Prices start from HK$1,322 HKDSave up to HK$3,082 HKD

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
HK$1,322 HKD