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Cushion|Natural|GIA

1.71ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5231935866

Certificate GIA 5231935866

Diamond specifications and retailer prices

From £4,483 GBP
$6,016 USD
As of November 2, 2026
Save £3,915 GBP (47%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £8,398 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct natural cushion diamond

This 1.71ct natural cushion sits in the one-and-a-half to two 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 5231935866. Listed at 26 retailers as of November 1, 2026, with prices from £4,483 to £8,398, a £3,915 spread on the same certified stone. MOH London lists it at £8,398. 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

1.71
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.76°
OriginNatural
Grading LabGIA
CertificateGIA 5231935866
Dimensions8.01 × 6.26 × 4.34 mm
L/W Ratio1.28
Top View
8.01 mm6.26 mm1.71 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231935866
Side View
Table 60.0%CrownGirdle: THN-THKPavilion 36.76°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £8,398 GBP|Low: £4,812 GBP|High: £8,500 GBP|Avg: £6,151 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£4,812 GBP
Retailer 8£5,040 GBP
Retailer 9£5,645 GBP
Retailer 4£5,684 GBP
Retailer 6£5,774 GBP
Retailer 2£5,798 GBP
Retailer 3£6,225 GBP
Retailer 10£6,639 GBP
Retailer 5£7,403 GBP
MOH London£8,398 GBP

36 data points across 10 retailers

26 retailers£4,483 GBP to £8,398 GBP

B+
Cheapest Retailer
-
£4,483 GBP
$6,016 USD
B
Retailer 2
-
£4,670 GBP
$6,267 USD
View
B
Retailer 3
-
£4,685 GBP
A$9,673 AUD
View
B
Retailer 4
-
£4,762 GBP
$6,390 USD
View
B
Retailer 5
-
£4,812 GBP
$6,457 USD
View
Final sale: no returns
B
Retailer 6
-
£4,831 GBP
$6,482 USD
View
B
Retailer 7
-
£5,009 GBP
CA$9,337 CAD
View
B
Retailer 8
-
£5,040 GBP
$6,763 USD
View
B
Retailer 9
-
£5,049 GBP
$6,775 USD
View
B
Retailer 10
-
£5,128 GBP
$6,881 USD
View
B
Retailer 11
-
£5,366 GBP
$7,201 USD
View
B
Retailer 12
-
£5,566 GBP
$7,469 USD
View
B
Retailer 13
-
£5,645 GBP
$7,575 USD
View
B
Retailer 14
-
£5,684 GBP
View
B
Retailer 15
-
£5,765 GBP
$7,736 USD
View
Retailer 16
-
£5,774 GBP
A$11,921 AUD
View
Price last confirmed 11 days ago
B
Retailer 17
-
£5,798 GBP
View
B
Retailer 18
-
£6,036 GBP
$8,100 USD
View
B
Retailer 19
-
£6,036 GBP
$8,100 USD
View
B
Retailer 20
-
£6,079 GBP
$8,158 USD
View
B
Retailer 21
-
£6,225 GBP
€7,956 EUR
View
B
Retailer 22
-
£6,237 GBP
$8,370 USD
View
Retailer 23
-
£6,639 GBP
$8,909 USD
View
Price last confirmed 10 days ago
B
Retailer 24
-
£6,640 GBP
$8,910 USD
View
B
Retailer 25
-
£7,403 GBP
ZAR 160,493 ZAR
View
Most Expensive
B
MOH London
2220C05F2 · Nov 1
£8,398 GBP
View
25 more retailers have this diamond
Prices start from £4,483 GBPSave up to £3,915 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.

B+
1.71ct Cushion
£4,483 GBP