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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

VG • D/SI1 • GIA 5543780981

Certificate GIA 5543780981

Diamond specifications and retailer prices

From £3,461 GBP
₹441,665 INR
As of November 1, 2026
Save £3,278 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,739 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5543780981. Listed at 15 retailers as of November 1, 2026, with prices from £3,461 to £6,739, a £3,278 spread on the same certified stone. MOH London lists it at £6,739. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5543780981
Dimensions7.65 × 5.89 × 4.05 mm
L/W Ratio1.30
Top View
7.65 mm5.89 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5543780981
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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: £6,739 GBP|Low: £3,453 GBP|High: £6,820 GBP|Avg: £4,567 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4£3,461 GBP
Retailer 8£3,644 GBP
Retailer 11£3,989 GBP
Retailer 7£4,262 GBP
Retailer 3£4,331 GBP
Retailer 2£4,388 GBP
Retailer 10£4,545 GBP
Retailer 9£4,574 GBP
Retailer 6£4,997 GBP
Retailer 5£5,620 GBP
MOH London£6,739 GBP

35 data points across 11 retailers

15 retailers£3,461 GBP to £6,739 GBP

A
Cheapest Retailer
-
£3,461 GBP
₹441,665 INR
A
Retailer 2
-
£3,613 GBP
$4,841 USD
View
A
Retailer 3
-
£3,644 GBP
$4,882 USD
View
Final sale: no returns
A
Retailer 4
-
£3,989 GBP
$5,345 USD
View
A
Retailer 5
-
£4,126 GBP
$5,529 USD
View
B+
Retailer 6
-
£4,262 GBP
$5,710 USD
View
Retailer 7
-
£4,331 GBP
View
Price last confirmed 33 days ago
A
Retailer 8
-
£4,388 GBP
View
Retailer 9
-
£4,545 GBP
A$9,370 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
£4,574 GBP
$6,129 USD
View
B+
Retailer 11
-
£4,762 GBP
$6,380 USD
View
B+
Retailer 12
-
£4,814 GBP
$6,450 USD
View
B+
Retailer 13
-
£4,997 GBP
€6,377 EUR
View
B+
Retailer 14
-
£5,620 GBP
ZAR 121,646 ZAR
View
Most Expensive
B
MOH London
76D360667 · Nov 1
£6,739 GBP
View
14 more retailers have this diamond
Prices start from £3,461 GBPSave up to £3,278 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
1.51ct Cushion
£3,461 GBP