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Cushion|Natural|GIA

1.00ct J IF Cushion Natural Diamond

EX • J/IF • GIA 1545202855

Certificate GIA 1545202855

Diamond specifications and retailer prices

From £1,066 GBP
$1,428 USD
As of November 1, 2026
Save £311 GBP (23%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,377 GBP at GemTrove · As of November 2, 2026
View at GemTrove

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545202855. Listed at 5 retailers as of November 1, 2026, with prices from £1,066 to £1,377, a £311 spread on the same certified stone. GemTrove lists it at £1,377. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545202855
Dimensions5.70 × 5.49 × 3.68 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.70 mm5.49 mm1.00 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545202855
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.1%

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: £1,377 GBP|Low: £1,066 GBP|High: £1,461 GBP|Avg: £1,226 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£1,066 GBP
Retailer 6£1,089 GBP
Retailer 2£1,156 GBP
Retailer 5£1,204 GBP
Retailer 4£1,270 GBP
GemTrove£1,377 GBP

38 data points across 6 retailers

5 retailers£1,066 GBP to £1,377 GBP

A
Cheapest Retailer
-
£1,066 GBP
$1,428 USD
A
Retailer 2
-
£1,156 GBP
View
A
Retailer 3
-
£1,204 GBP
SGD 2,180 SGD
View
A
Retailer 4
-
£1,270 GBP
$1,702 USD
View
Most Expensive
B+
GemTrove
GT-N-01245412-98 · Nov 2
£1,377 GBP
A$2,838 AUD
View
4 more retailers have this diamond
Prices start from £1,066 GBPSave up to £311 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
1.00ct Cushion
£1,066 GBP