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Cushion|Natural|GIA

1.66ct I IF Cushion Natural Diamond

EX • I/IF • GIA 1557933412

Certificate GIA 1557933412

Diamond specifications and retailer prices

From £4,777 GBP
$6,411 USD
As of November 2, 2026
Save £2,848 GBP (37%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,625 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.66ct natural cushion diamond

This 1.66ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557933412. Listed at 5 retailers as of November 2, 2026, with prices from £4,777 to £7,625, a £2,848 spread on the same certified stone. MOH London lists it at £7,625. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1557933412
Dimensions7.71 × 5.90 × 4.10 mm
L/W Ratio1.31
Top View
7.71 mm5.90 mm1.66 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557933412
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.5%

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 2
Current: £7,625 GBP|Low: £4,027 GBP|High: £7,904 GBP|Avg: £5,728 GBP|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3£4,777 GBP
Retailer 5£4,780 GBP
Retailer 4£5,610 GBP
Retailer 2£5,654 GBP
MOH London£7,625 GBP

30 data points across 5 retailers

5 retailers£4,777 GBP to £7,625 GBP

B+
Cheapest Retailer
-
£4,777 GBP
$6,411 USD
Final sale: no returns
A
Retailer 2
-
£4,780 GBP
$6,415 USD
View
B+
Retailer 3
-
£5,610 GBP
View
B+
Retailer 4
-
£5,654 GBP
€7,226 EUR
View
Most Expensive
B
MOH London
C2F535E25 · Nov 2
£7,625 GBP
View
4 more retailers have this diamond
Prices start from £4,777 GBPSave up to £2,848 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
1.66ct Cushion
£4,777 GBP