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Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 1558530406

Certificate GIA 1558530406

Diamond specifications and retailer prices

From £1,213 GBP
HK$12,700 HKD
As of November 1, 2026
Save £1,627 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,841 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 1558530406. Listed at 12 retailers as of October 29, 2026, with prices from £1,213 to £2,841, a £1,627 spread on the same certified stone. MOH London lists it at £2,841. 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

1.30
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558530406
Dimensions7.49 × 5.58 × 3.76 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
7.49 mm5.58 mm1.30 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558530406
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,841 GBP|Low: £1,204 GBP|High: £2,876 GBP|Avg: £1,722 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4£1,213 GBP
Retailer 2£1,277 GBP
Retailer 7£1,483 GBP
Retailer 8£1,488 GBP
Retailer 6£1,613 GBP
Retailer 10£1,694 GBP
Retailer 9£1,717 GBP
Retailer 3£1,770 GBP
Retailer 5£2,014 GBP
MOH London£2,841 GBP

37 data points across 10 retailers

12 retailers£1,213 GBP to £2,841 GBP

A
Cheapest Retailer
-
£1,213 GBP
HK$12,700 HKD
A
Retailer 2
-
£1,277 GBP
₹162,954 INR
View
A
Retailer 3
-
£1,483 GBP
SGD 2,686 SGD
View
A
Retailer 4
-
£1,488 GBP
$1,994 USD
View
Final sale: no returns
A
Retailer 5
-
£1,520 GBP
$2,036 USD
View
A
Retailer 6
-
£1,613 GBP
$2,161 USD
View
A
Retailer 7
-
£1,694 GBP
$2,270 USD
View
A
Retailer 8
-
£1,717 GBP
$2,300 USD
View
A
Retailer 9
-
£1,770 GBP
View
B+
Retailer 10
-
£1,813 GBP
A$3,738 AUD
View
B+
Retailer 11
-
£2,014 GBP
€2,570 EUR
View
Most Expensive
B
MOH London
EC01730CC · Oct 29
£2,841 GBP
View
11 more retailers have this diamond
Prices start from £1,213 GBPSave up to £1,627 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
1.30ct Cushion
£1,213 GBP