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Cushion|Natural|GIA

1.03ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 3545082378

Certificate GIA 3545082378

Diamond specifications and retailer prices

From £644 GBP
As of November 6, 2026
Save £985 GBP (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,629 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545082378. Listed at 8 retailers as of November 6, 2026, with prices from £644 to £1,629, a £985 spread on the same certified stone. Do Amore Diamonds lists it at £1,629. 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

1.03
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545082378
Dimensions5.74 × 5.54 × 3.75 mm
L/W Ratio1.04
Top View
5.74 mm5.54 mm1.03 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545082378
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,629 GBP|Low: £597 GBP|High: £1,890 GBP|Avg: £924 GBP|-13.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£644 GBP
Retailer 7£708 GBP
Retailer 4£753 GBP
Retailer 2£799 GBP
Retailer 6£805 GBP
Retailer 3£898 GBP
Retailer 8£965 GBP
Do Amore Diamonds£1,629 GBP

43 data points across 8 retailers

8 retailers£644 GBP to £1,629 GBP

A
Cheapest Retailer
-
£644 GBP
Final sale: no returns
A
Retailer 2
-
£708 GBP
View
A
Retailer 3
-
£753 GBP
View
A
Retailer 4
-
£799 GBP
View
A
Retailer 5
-
£805 GBP
View
A
Retailer 6
-
£898 GBP
View
A
Retailer 7
-
£965 GBP
View
Most Expensive
B
Do Amore Diamonds
12-100767844602 · Nov 6
£1,629 GBP
$2,180 USD
View
7 more retailers have this diamond
Prices start from £644 GBPSave up to £985 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
1.03ct Cushion
£644 GBP