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Cushion|Natural|GIA

1.70ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 6555632586

Certificate GIA 6555632586

Diamond specifications and retailer prices

From £2,178 GBP
HK$22,800 HKD
As of November 1, 2026
Save £2,648 GBP (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,826 GBP at MOH London · As of November 1, 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 6555632586. Listed at 10 retailers as of November 1, 2026, with prices from £2,178 to £4,826, a £2,648 spread on the same certified stone. MOH London lists it at £4,826. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555632586
Dimensions8.29 × 6.39 × 3.82 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Indented Natural, Feather, Needle
Top View
8.29 mm6.39 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555632586
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.8%

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: £4,826 GBP|Low: £2,159 GBP|High: £5,265 GBP|Avg: £3,136 GBP|-8.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£2,178 GBP
Retailer 2£2,324 GBP
Retailer 8£2,355 GBP
Retailer 6£2,886 GBP
Retailer 3£2,952 GBP
Retailer 7£3,023 GBP
Retailer 5£3,378 GBP
MOH London£4,826 GBP

37 data points across 8 retailers

10 retailers£2,178 GBP to £4,826 GBP

A
Cheapest Retailer
-
£2,178 GBP
HK$22,800 HKD
A
Retailer 2
-
£2,324 GBP
₹296,565 INR
View
A
Retailer 3
-
£2,355 GBP
SGD 4,265 SGD
View
B+
Retailer 4
-
£2,857 GBP
$3,828 USD
View
B+
Retailer 5
-
£2,886 GBP
$3,867 USD
View
B+
Retailer 6
-
£2,952 GBP
View
B+
Retailer 7
-
£3,016 GBP
A$6,218 AUD
View
B+
Retailer 8
-
£3,023 GBP
$4,050 USD
View
B+
Retailer 9
-
£3,378 GBP
€4,311 EUR
View
Most Expensive
B
MOH London
64A1A106C · Nov 1
£4,826 GBP
View
9 more retailers have this diamond
Prices start from £2,178 GBPSave up to £2,648 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
£2,178 GBP