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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6542448794

Certificate GIA 6542448794

Diamond specifications and retailer prices

From £2,356 GBP
HK$24,700 HKD
As of November 1, 2026
Save £2,846 GBP (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,202 GBP at MOH London · As of November 2, 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 F 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 6542448794. Listed at 21 retailers as of November 1, 2026, with prices from £2,356 to £5,202, a £2,846 spread on the same certified stone. MOH London lists it at £5,202. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 6542448794
Dimensions6.61 × 6.44 × 4.39 mm
L/W Ratio1.03
Top View
6.61 mm6.44 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542448794
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 36.5°Culet: NDepth 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: £5,202 GBP|Low: £2,337 GBP|High: £5,320 GBP|Avg: £3,194 GBP|-2.2%
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
November 3, 2026
Retailer 16£2,356 GBP
Retailer 19£2,378 GBP
Retailer 14£2,471 GBP
Retailer 9£2,502 GBP
Retailer 8£2,548 GBP
Retailer 7£2,601 GBP
Retailer 5£2,698 GBP
Retailer 6£2,818 GBP
Retailer 12£2,914 GBP
Retailer 4£2,944 GBP
Retailer 17£2,944 GBP
Retailer 18£3,040 GBP
Retailer 2£3,182 GBP
Retailer 13£3,519 GBP
Retailer 10£3,520 GBP
Retailer 11£3,539 GBP
Retailer 3£3,698 GBP
Retailer 15£3,824 GBP
MOH London£5,202 GBP

30 data points across 19 retailers

21 retailers£2,356 GBP to £5,202 GBP

A
Cheapest Retailer
-
£2,356 GBP
HK$24,700 HKD
A
Retailer 2
-
£2,378 GBP
$3,191 USD
View
A
Retailer 3
-
£2,471 GBP
$3,316 USD
View
A
Retailer 4
-
£2,502 GBP
$3,357 USD
View
A
Retailer 5
-
£2,548 GBP
$3,419 USD
View
A
Retailer 6
-
£2,583 GBP
A$5,334 AUD
View
A
Retailer 7
-
£2,601 GBP
$3,491 USD
View
Final sale: no returns
A
Retailer 8
-
£2,698 GBP
$3,620 USD
View
A
Retailer 9
-
£2,818 GBP
$3,782 USD
View
Retailer 10
-
£2,902 GBP
$3,894 USD
View
Price last confirmed 23 days ago
A
Retailer 11
-
£2,914 GBP
$3,910 USD
View
A
Retailer 12
-
£2,944 GBP
$3,950 USD
View
A
Retailer 13
-
£2,944 GBP
$3,950 USD
View
A
Retailer 14
-
£3,040 GBP
$4,080 USD
View
A
Retailer 15
-
£3,182 GBP
View
A
Retailer 16
-
£3,519 GBP
€4,498 EUR
View
Retailer 17
-
£3,520 GBP
$4,724 USD
View
Price last confirmed 21 days ago
Retailer 18
-
£3,539 GBP
A$7,306 AUD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
£3,698 GBP
$4,962 USD
View
B+
Retailer 20
-
£3,824 GBP
ZAR 82,894 ZAR
View
Most Expensive
B
MOH London
DA3EB89F6 · Nov 2
£5,202 GBP
View
20 more retailers have this diamond
Prices start from £2,356 GBPSave up to £2,846 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
£2,356 GBP