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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6532506605

Certificate GIA 6532506605

Diamond specifications and retailer prices

From £1,677 GBP
$2,247 USD
As of November 1, 2026
Save £2,208 GBP (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,885 GBP at MOH London · As of October 29, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6532506605. Listed at 23 retailers as of October 29, 2026, with prices from £1,677 to £3,885, a £2,208 spread on the same certified stone. MOH London lists it at £3,885. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle33.9°
OriginNatural
Grading LabGIA
CertificateGIA 6532506605
Dimensions6.53 × 6.32 × 4.31 mm
L/W Ratio1.03
Top View
6.53 mm6.32 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532506605
Side View
Table 65.0%Crown 38.9°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 68.2%

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: £3,885 GBP|Low: £1,677 GBP|High: £3,950 GBP|Avg: £2,284 GBP|-1.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12£1,677 GBP
Retailer 18£1,748 GBP
Retailer 14£1,829 GBP
Retailer 16£1,838 GBP
Retailer 11£1,875 GBP
Retailer 10£1,932 GBP
Retailer 7£1,937 GBP
Retailer 9£2,052 GBP
Retailer 21£2,090 GBP
Retailer 5£2,093 GBP
Retailer 4£2,112 GBP
Retailer 2£2,223 GBP
Retailer 3£2,224 GBP
Retailer 19£2,224 GBP
Retailer 20£2,299 GBP
Retailer 15£2,414 GBP
Retailer 6£2,682 GBP
Retailer 13£2,704 GBP
Retailer 8£2,740 GBP
Retailer 17£2,840 GBP
MOH London£3,885 GBP

22 data points across 21 retailers

23 retailers£1,677 GBP to £3,885 GBP

A
Cheapest Retailer
-
£1,677 GBP
$2,247 USD
A
Retailer 2
-
£1,748 GBP
HK$18,300 HKD
View
A
Retailer 3
-
£1,829 GBP
$2,450 USD
View
A
Retailer 4
-
£1,838 GBP
$2,463 USD
View
B+
Retailer 5
-
£1,875 GBP
$2,512 USD
View
B+
Retailer 6
-
£1,932 GBP
$2,589 USD
View
Final sale: no returns
A
Retailer 7
-
£1,937 GBP
$2,596 USD
View
A
Retailer 8
-
£1,938 GBP
A$3,995 AUD
View
B+
Retailer 9
-
£2,052 GBP
$2,750 USD
View
A
Retailer 10
-
£2,090 GBP
$2,800 USD
View
B+
Retailer 11
-
£2,093 GBP
$2,805 USD
View
A
Retailer 12
-
£2,112 GBP
$2,830 USD
View
B+
Retailer 13
-
£2,223 GBP
View
A
Retailer 14
-
£2,224 GBP
$2,980 USD
View
A
Retailer 15
-
£2,224 GBP
$2,980 USD
View
B+
Retailer 16
-
£2,299 GBP
$3,080 USD
View
Retailer 17
-
£2,383 GBP
A$4,912 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
£2,414 GBP
View
Retailer 19
-
£2,682 GBP
$3,594 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
£2,704 GBP
€3,451 EUR
View
B+
Retailer 21
-
£2,740 GBP
$3,671 USD
View
B+
Retailer 22
-
£2,840 GBP
ZAR 61,480 ZAR
View
Most Expensive
B
MOH London
7C8791961 · Oct 29
£3,885 GBP
View
22 more retailers have this diamond
Prices start from £1,677 GBPSave up to £2,208 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
£1,677 GBP