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Cushion|Natural|GIA

1.70ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 7553229912

Certificate GIA 7553229912

Diamond specifications and retailer prices

From £1,710 GBP
HK$17,900 HKD
As of November 1, 2026
Save £2,253 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,963 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two 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 7553229912. Listed at 7 retailers as of October 26, 2026, with prices from £1,710 to £3,963, a £2,253 spread on the same certified stone. MOH London lists it at £3,963. 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

1.70
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553229912
Dimensions6.95 × 6.52 × 4.54 mm
L/W Ratio1.07
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.95 mm6.52 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553229912
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

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: £3,963 GBP|Low: £1,710 GBP|High: £4,510 GBP|Avg: £2,644 GBP|-11.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2£1,710 GBP
Retailer 3£1,929 GBP
Retailer 4£2,106 GBP
Retailer 6£2,428 GBP
Retailer 7£2,459 GBP
Retailer 5£2,802 GBP
MOH London£3,963 GBP

30 data points across 7 retailers

7 retailers£1,710 GBP to £3,963 GBP

A
Cheapest Retailer
-
£1,710 GBP
HK$17,900 HKD
A
Retailer 2
-
£1,929 GBP
$2,585 USD
View
A
Retailer 3
-
£2,106 GBP
$2,822 USD
View
A
Retailer 4
-
£2,428 GBP
SGD 4,397 SGD
View
A
Retailer 5
-
£2,459 GBP
$3,295 USD
View
Final sale: no returns
A
Retailer 6
-
£2,802 GBP
€3,575 EUR
View
Most Expensive
B
MOH London
A86E5F604 · Oct 26
£3,963 GBP
View
6 more retailers have this diamond
Prices start from £1,710 GBPSave up to £2,253 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
1.70ct Cushion
£1,710 GBP