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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 6243007395

Certificate GIA 6243007395

Diamond specifications and retailer prices

From £1,863 GBP
HK$19,500 HKD
As of November 1, 2026
Save £2,248 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,111 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6243007395. Listed at 16 retailers as of November 1, 2026, with prices from £1,863 to £4,111, a £2,248 spread on the same certified stone. MOH London lists it at £4,111. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6243007395
Dimensions7.58 × 6.04 × 4.11 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.58 mm6.04 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243007395
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: £4,111 GBP|Low: £1,863 GBP|High: £4,672 GBP|Avg: £2,651 GBP|-12.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 15£1,863 GBP
Retailer 3£1,868 GBP
Retailer 12£2,032 GBP
Retailer 5£2,089 GBP
Retailer 10£2,090 GBP
Retailer 7£2,247 GBP
Retailer 14£2,251 GBP
Retailer 9£2,310 GBP
Retailer 13£2,321 GBP
Retailer 2£2,437 GBP
Retailer 4£2,541 GBP
Retailer 11£2,611 GBP
Retailer 8£2,925 GBP
Retailer 6£4,046 GBP
MOH London£4,111 GBP

25 data points across 15 retailers

16 retailers£1,863 GBP to £4,111 GBP

A
Cheapest Retailer
-
£1,863 GBP
HK$19,500 HKD
A
Retailer 2
-
£1,868 GBP
$2,503 USD
View
A
Retailer 3
-
£2,032 GBP
$2,722 USD
View
A
Retailer 4
-
£2,089 GBP
$2,798 USD
View
A
Retailer 5
-
£2,090 GBP
$2,800 USD
View
Final sale: no returns
A
Retailer 6
-
£2,247 GBP
$3,011 USD
View
A
Retailer 7
-
£2,251 GBP
A$4,641 AUD
View
A
Retailer 8
-
£2,310 GBP
$3,095 USD
View
A
Retailer 9
-
£2,321 GBP
$3,110 USD
View
A
Retailer 10
-
£2,437 GBP
View
A
Retailer 11
-
£2,541 GBP
$3,405 USD
View
A
Retailer 12
-
£2,611 GBP
View
B+
Retailer 13
-
£2,769 GBP
A$5,708 AUD
View
A
Retailer 14
-
£2,925 GBP
€3,732 EUR
View
Retailer 15
-
£4,046 GBP
$5,422 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
83DF22F75 · Nov 1
£4,111 GBP
View
15 more retailers have this diamond
Prices start from £1,863 GBPSave up to £2,248 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
£1,863 GBP