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Cushion|Natural|GIA

1.71ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6432151920

Certificate GIA 6432151920

Diamond specifications and retailer prices

From £5,797 GBP
$7,779 USD
As of November 2, 2026
Save £4,479 GBP (44%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,276 GBP at MOH London · As of November 2, 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 H 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 6432151920. Listed at 21 retailers as of November 2, 2026, with prices from £5,797 to £10,276, a £4,479 spread on the same certified stone. MOH London lists it at £10,276. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432151920
Dimensions6.84 × 6.57 × 4.76 mm
L/W Ratio1.04
Top View
6.84 mm6.57 mm1.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6432151920
Side View
Table 67.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 72.4%

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: £10,276 GBP|Low: £5,483 GBP|High: £10,399 GBP|Avg: £7,464 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10£5,797 GBP
Retailer 6£5,865 GBP
Retailer 7£6,579 GBP
Retailer 8£6,579 GBP
Retailer 3£7,195 GBP
Retailer 5£7,229 GBP
Retailer 9£7,329 GBP
Retailer 2£7,889 GBP
Retailer 4£9,666 GBP
MOH London£10,276 GBP

43 data points across 10 retailers

21 retailers£5,797 GBP to £10,276 GBP

B+
Cheapest Retailer
-
£5,797 GBP
$7,779 USD
B+
Retailer 2
-
£5,865 GBP
$7,870 USD
View
B
Retailer 3
-
£6,079 GBP
$8,158 USD
View
B
Retailer 4
-
£6,160 GBP
$8,266 USD
View
B
Retailer 5
-
£6,348 GBP
$8,518 USD
View
B
Retailer 6
-
£6,372 GBP
CA$11,876 CAD
View
B
Retailer 7
-
£6,532 GBP
$8,765 USD
View
B
Retailer 8
-
£6,579 GBP
$8,829 USD
View
B
Retailer 9
-
£6,579 GBP
$8,829 USD
View
Final sale: no returns
B
Retailer 10
-
£6,695 GBP
$8,984 USD
View
B
Retailer 11
-
£7,195 GBP
View
Retailer 12
-
£7,229 GBP
A$14,924 AUD
View
Price last confirmed 10 days ago
B
Retailer 13
-
£7,329 GBP
$9,835 USD
View
B
Retailer 14
-
£7,576 GBP
$10,166 USD
View
B
Retailer 15
-
£7,765 GBP
$10,420 USD
View
B
Retailer 16
-
£7,765 GBP
$10,420 USD
View
B
Retailer 17
-
£7,889 GBP
€10,083 EUR
View
B
Retailer 18
-
£8,018 GBP
$10,760 USD
View
Retailer 19
-
£8,661 GBP
$11,622 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
£9,666 GBP
ZAR 209,546 ZAR
View
Most Expensive
B
MOH London
3B95C68CA · Nov 2
£10,276 GBP
View
20 more retailers have this diamond
Prices start from £5,797 GBPSave up to £4,479 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
£5,797 GBP