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Cushion|Natural|GIA

1.30ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6562436255

Certificate GIA 6562436255

Diamond specifications and retailer prices

From £1,739 GBP
HK$18,200 HKD
As of November 1, 2026
Save £2,077 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,816 GBP at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562436255. Listed at 17 retailers as of November 1, 2026, with prices from £1,739 to £3,816, a £2,077 spread on the same certified stone. MOH London lists it at £3,816. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562436255
Dimensions7.16 × 5.50 × 3.85 mm
L/W Ratio1.30
Top View
7.16 mm5.50 mm1.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562436255
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

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: £3,816 GBP|Low: £1,720 GBP|High: £3,916 GBP|Avg: £2,451 GBP|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 13£1,739 GBP
Retailer 11£1,750 GBP
Retailer 3£2,008 GBP
Retailer 4£2,043 GBP
Retailer 16£2,148 GBP
Retailer 5£2,220 GBP
Retailer 2£2,226 GBP
Retailer 15£2,282 GBP
Retailer 10£2,382 GBP
Retailer 14£2,388 GBP
Retailer 7£2,413 GBP
Retailer 6£2,474 GBP
Retailer 9£2,560 GBP
Retailer 12£2,805 GBP
Retailer 8£3,357 GBP
MOH London£3,816 GBP

23 data points across 16 retailers

17 retailers£1,739 GBP to £3,816 GBP

A
Cheapest Retailer
-
£1,739 GBP
HK$18,200 HKD
A
Retailer 2
-
£1,750 GBP
₹223,349 INR
View
B+
Retailer 3
-
£2,008 GBP
$2,690 USD
View
B+
Retailer 4
-
£2,043 GBP
$2,738 USD
View
B+
Retailer 5
-
£2,148 GBP
$2,878 USD
View
B+
Retailer 6
-
£2,220 GBP
$2,975 USD
View
B+
Retailer 7
-
£2,226 GBP
View
B+
Retailer 8
-
£2,282 GBP
$3,057 USD
View
B+
Retailer 9
-
£2,382 GBP
View
B
Retailer 10
-
£2,388 GBP
$3,200 USD
View
B
Retailer 11
-
£2,413 GBP
SGD 4,370 SGD
View
Retailer 12
-
£2,472 GBP
A$5,095 AUD
View
Price last confirmed 25 days ago
B
Retailer 13
-
£2,474 GBP
$3,315 USD
View
B
Retailer 14
-
£2,560 GBP
€3,267 EUR
View
B
Retailer 15
-
£2,805 GBP
ZAR 60,709 ZAR
View
B
Retailer 16
-
£3,357 GBP
$4,498 USD
View
Most Expensive
B
MOH London
5921481E8 · Nov 1
£3,816 GBP
View
16 more retailers have this diamond
Prices start from £1,739 GBPSave up to £2,077 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
£1,739 GBP