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Cushion|Natural|GIA

1.70ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 6561017306

Certificate GIA 6561017306

Diamond specifications and retailer prices

From £2,730 GBP
$3,658 USD
As of October 26, 2026
Save £3,291 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,021 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 6561017306. Listed at 13 retailers as of October 26, 2026, with prices from £2,730 to £6,021, a £3,291 spread on the same certified stone. MOH London lists it at £6,021. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561017306
Dimensions8.22 × 6.20 × 4.03 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle, Natural
Top View
8.22 mm6.20 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561017306
Side View
Table 61.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 65.1%

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: Oct 26
Current: £6,021 GBP|Low: £2,686 GBP|High: £6,085 GBP|Avg: £3,640 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 5£2,730 GBP
Retailer 9£2,865 GBP
Retailer 10£2,895 GBP
Retailer 3£3,156 GBP
Retailer 11£3,379 GBP
Retailer 7£3,405 GBP
Retailer 8£3,420 GBP
Retailer 4£3,597 GBP
Retailer 2£3,731 GBP
Retailer 6£3,737 GBP
MOH London£6,021 GBP

31 data points across 11 retailers

13 retailers£2,730 GBP to £6,021 GBP

A
Cheapest Retailer
-
£2,730 GBP
$3,658 USD
Retailer 2
-
£2,865 GBP
$3,839 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£2,895 GBP
$3,879 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£3,379 GBP
$4,528 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£3,397 GBP
$4,551 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
£3,405 GBP
$4,562 USD
View
Retailer 7
-
£3,420 GBP
$4,582 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
£3,589 GBP
A$7,398 AUD
View
B+
Retailer 9
-
£3,597 GBP
€4,590 EUR
View
B+
Retailer 10
-
£3,731 GBP
View
B+
Retailer 11
-
£3,737 GBP
View
Retailer 12
-
£4,168 GBP
$5,584 USD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
2C48D6BCA · Oct 26
£6,021 GBP
View
12 more retailers have this diamond
Prices start from £2,730 GBPSave up to £3,291 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
£2,730 GBP