CaratHunter
Plans
Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 6223478055

Certificate GIA 6223478055

Diamond specifications and retailer prices

From £6,415 GBP
$8,608 USD
As of November 2, 2026
Save £4,979 GBP (44%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £11,394 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 G 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 6223478055. Listed at 21 retailers as of November 1, 2026, with prices from £6,415 to £11,394, a £4,979 spread on the same certified stone. MOH London lists it at £11,394. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6223478055
Dimensions7.39 × 6.12 × 4.26 mm
L/W Ratio1.21
Top View
7.39 mm6.12 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6223478055
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £11,394 GBP|Low: £6,079 GBP|High: £11,531 GBP|Avg: £8,276 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£6,415 GBP
Retailer 6£6,494 GBP
Retailer 7£7,295 GBP
Retailer 8£7,295 GBP
Retailer 3£7,989 GBP
Retailer 5£8,030 GBP
Retailer 2£8,767 GBP
Retailer 4£10,718 GBP
MOH London£11,394 GBP

44 data points across 9 retailers

21 retailers£6,415 GBP to £11,394 GBP

B
Cheapest Retailer
-
£6,415 GBP
$8,608 USD
B
Retailer 2
-
£6,494 GBP
$8,715 USD
View
B
Retailer 3
-
£6,753 GBP
$9,062 USD
View
B
Retailer 4
-
£6,769 GBP
$9,084 USD
View
B
Retailer 5
-
£6,949 GBP
$9,325 USD
View
B
Retailer 6
-
£7,022 GBP
CA$13,087 CAD
View
B
Retailer 7
-
£7,221 GBP
$9,690 USD
View
B
Retailer 8
-
£7,295 GBP
$9,790 USD
View
Final sale: no returns
B
Retailer 9
-
£7,295 GBP
$9,790 USD
View
B
Retailer 10
-
£7,423 GBP
$9,961 USD
View
B
Retailer 11
-
£7,989 GBP
View
Retailer 12
-
£8,030 GBP
A$16,578 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£8,106 GBP
$10,878 USD
View
B
Retailer 14
-
£8,418 GBP
$11,296 USD
View
B
Retailer 15
-
£8,562 GBP
$11,490 USD
View
B
Retailer 16
-
£8,562 GBP
$11,490 USD
View
B
Retailer 17
-
£8,640 GBP
$11,594 USD
View
B
Retailer 18
-
£8,767 GBP
€11,204 EUR
View
B
Retailer 19
-
£8,845 GBP
$11,870 USD
View
B
Retailer 20
-
£10,718 GBP
ZAR 232,351 ZAR
View
Most Expensive
B
MOH London
43546BE74 · Nov 1
£11,394 GBP
View
20 more retailers have this diamond
Prices start from £6,415 GBPSave up to £4,979 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.

B
1.51ct Cushion
£6,415 GBP