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Cushion|Natural|GIA

0.31ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6541553004

Certificate GIA 6541553004

Diamond specifications and retailer prices

From £143 GBP
₹18,237 INR
As of October 31, 2026
Save £327 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £470 GBP 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 6541553004. Listed at 9 retailers as of October 31, 2026, with prices from £143 to £470, a £327 spread on the same certified stone. MOH London lists it at £470. 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
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541553004
Dimensions3.81 × 3.77 × 2.55 mm
L/W Ratio1.01
Top View
3.81 mm3.77 mm0.31 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6541553004
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

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: Oct 31
Current: £470 GBP|Low: £143 GBP|High: £489 GBP|Avg: £306 GBP|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3£143 GBP
Retailer 6£219 GBP
Retailer 7£235 GBP
Retailer 2£258 GBP
Retailer 4£316 GBP
Retailer 8£320 GBP
Retailer 9£335 GBP
Retailer 5£393 GBP
MOH London£470 GBP

36 data points across 9 retailers

9 retailers£143 GBP to £470 GBP

A
Cheapest Retailer
-
£143 GBP
₹18,237 INR
B+
Retailer 2
-
£219 GBP
$294 USD
View
B+
Retailer 3
-
£235 GBP
$315 USD
View
B+
Retailer 4
-
£258 GBP
View
B
Retailer 5
-
£316 GBP
ZAR 6,832 ZAR
View
B
Retailer 6
-
£320 GBP
$429 USD
View
Retailer 7
-
£335 GBP
A$691 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
£393 GBP
€501 EUR
View
Most Expensive
B
MOH London
85BABEFF6 · Nov 1
£470 GBP
View
8 more retailers have this diamond
Prices start from £143 GBPSave up to £327 GBP

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
£143 GBP