CaratHunter
Plans
Cushion|Natural|GIA

0.81ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5202431859

Certificate GIA 5202431859

Diamond specifications and retailer prices

From £1,268 GBP
As of November 5, 2026
Save £339 GBP (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,607 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-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 5202431859. Listed at 3 retailers as of November 5, 2026, with prices from £1,268 to £1,607, a £339 spread on the same certified stone. Diamond Exchange Canada lists it at £1,607. 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

0.81
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5202431859
Dimensions5.40 × 4.96 × 3.45 mm
L/W Ratio1.09
Top View
5.40 mm4.96 mm0.81 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5202431859
Side View
Table 61.0%CrownGirdlePavilionCuletDepth 69.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,607 GBP|Low: £1,252 GBP|High: £1,607 GBP|Avg: £1,438 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£1,268 GBP
Retailer 2£1,275 GBP
Diamond Exchange Canada£1,607 GBP

36 data points across 3 retailers

3 retailers£1,268 GBP to £1,607 GBP

B
Cheapest Retailer
-
£1,268 GBP
B
Retailer 2
-
£1,275 GBP
View
Most Expensive
B
Diamond Exchange Canada
1771508804 · Nov 5
£1,607 GBP
CA$2,988 CAD
View
2 more retailers have this diamond
Prices start from £1,268 GBPSave up to £339 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.

B
0.81ct Cushion
£1,268 GBP