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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6555110792

Certificate GIA 6555110792

Diamond specifications and retailer prices

From £2,547 GBP
HK$26,700 HKD
As of November 1, 2026
Save £2,869 GBP (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,416 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 6555110792. Listed at 20 retailers as of November 1, 2026, with prices from £2,547 to £5,416, a £2,869 spread on the same certified stone. MOH London lists it at £5,416. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555110792
Dimensions6.51 × 6.48 × 4.41 mm
L/W Ratio1.00
Top View
6.51 mm6.48 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555110792
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NDepth 68.1%

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: £5,416 GBP|Low: £2,459 GBP|High: £5,481 GBP|Avg: £3,412 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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 14£2,547 GBP
Retailer 16£2,596 GBP
Retailer 15£2,653 GBP
Retailer 7£2,844 GBP
Retailer 9£2,932 GBP
Retailer 4£3,046 GBP
Retailer 5£3,081 GBP
Retailer 2£3,182 GBP
Retailer 3£3,227 GBP
Retailer 17£3,227 GBP
Retailer 18£3,338 GBP
Retailer 12£3,382 GBP
Retailer 8£3,428 GBP
Retailer 10£3,845 GBP
Retailer 11£3,848 GBP
Retailer 6£3,954 GBP
Retailer 13£4,180 GBP
MOH London£5,416 GBP

29 data points across 18 retailers

20 retailers£2,547 GBP to £5,416 GBP

A
Cheapest Retailer
-
£2,547 GBP
HK$26,700 HKD
A
Retailer 2
-
£2,596 GBP
$3,484 USD
View
A
Retailer 3
-
£2,653 GBP
$3,560 USD
View
A
Retailer 4
-
£2,712 GBP
$3,639 USD
View
A
Retailer 5
-
£2,758 GBP
$3,701 USD
View
B+
Retailer 6
-
£2,844 GBP
$3,816 USD
View
Final sale: no returns
A
Retailer 7
-
£2,932 GBP
$3,935 USD
View
A
Retailer 8
-
£3,046 GBP
$4,088 USD
View
A
Retailer 9
-
£3,081 GBP
$4,135 USD
View
A
Retailer 10
-
£3,182 GBP
View
A
Retailer 11
-
£3,227 GBP
$4,330 USD
View
A
Retailer 12
-
£3,227 GBP
$4,330 USD
View
A
Retailer 13
-
£3,338 GBP
$4,480 USD
View
A
Retailer 14
-
£3,382 GBP
View
Retailer 15
-
£3,428 GBP
A$7,078 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
£3,845 GBP
$5,160 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
£3,848 GBP
€4,918 EUR
View
B+
Retailer 18
-
£3,954 GBP
$5,306 USD
View
B+
Retailer 19
-
£4,180 GBP
ZAR 90,626 ZAR
View
Most Expensive
B
MOH London
98AE5D049 · Nov 2
£5,416 GBP
View
19 more retailers have this diamond
Prices start from £2,547 GBPSave up to £2,869 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
£2,547 GBP