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Cushion|Natural|GIA

1.02ct J SI2 Cushion Natural Diamond

GD • J/SI2 • GIA 1377923611

Certificate GIA 1377923611

Diamond specifications and retailer prices

From £1,231 GBP
As of November 6, 2026
Save £703 GBP (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,934 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.02ct natural cushion diamond

This 1.02ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1377923611. Listed at 11 retailers as of November 6, 2026, with prices from £1,231 to £1,934, a £703 spread on the same certified stone. Yorxs lists it at £1,934. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1377923611
Dimensions5.93 × 5.38 × 3.72 mm
L/W Ratio1.10
Culet sizeNone
Top View
5.93 mm5.38 mm1.02 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 1377923611
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.2%

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 6
Current: £1,521 GBP|Low: £1,233 GBP|High: £1,939 GBP|Avg: £1,441 GBP|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 6, 2026
Retailer 3£1,250 GBP
Retailer 4£1,284 GBP
Retailer 6£1,322 GBP
Retailer 7£1,390 GBP
Retailer 5£1,425 GBP
Retailer 2£1,435 GBP
Retailer 1£1,521 GBP
Yorxs£1,934 GBP

44 data points across 8 retailers

11 retailers£1,231 GBP to £1,934 GBP

B
Cheapest Retailer
-
£1,231 GBP
B
Retailer 2
-
£1,249 GBP
View
B
Retailer 3
-
£1,250 GBP
View
B
Retailer 4
-
£1,284 GBP
View
B
Retailer 5
-
£1,322 GBP
View
B
Retailer 6
-
£1,390 GBP
View
B
Retailer 7
-
£1,435 GBP
View
B
Retailer 8
-
£1,486 GBP
View
B
Retailer 9
-
£1,521 GBP
View
C
Retailer 10
-
£1,747 GBP
View
Most Expensive
C
Yorxs
518485378 · Nov 6
£1,934 GBP
€2,466 EUR
View
10 more retailers have this diamond
Prices start from £1,231 GBPSave up to £703 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
1.02ct Cushion
£1,231 GBP