CaratHunter
Plans
Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 7568297408

Certificate GIA 7568297408

Diamond specifications and retailer prices

From £2,456 GBP
As of November 4, 2026
Save £1,536 GBP (38%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £9,305 GBP at RockHer · As of October 24, 2026
View at RockHer

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7568297408. Listed at 19 retailers as of November 4, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568297408
Dimensions7.52 × 5.99 × 4.08 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizeNone
Top View
7.52 mm5.99 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568297408
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: 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 4
Current: £3,652 GBP|Low: £2,445 GBP|High: £11,223 GBP|Avg: £3,905 GBP|-4.4%
Retailer 1
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
RockHer
November 6, 2026
Retailer 3£2,456 GBP
Retailer 11£2,572 GBP
Retailer 13£2,644 GBP
Retailer 6£2,686 GBP
Retailer 14£2,784 GBP
Retailer 4£3,182 GBP
Retailer 12£3,301 GBP
Retailer 5£3,475 GBP
Retailer 15£3,504 GBP
Retailer 16£3,504 GBP
Retailer 2£3,623 GBP
Retailer 1£3,652 GBP
Retailer 9£3,751 GBP
Retailer 10£3,992 GBP
Retailer 8£4,156 GBP
Retailer 7£5,542 GBP
RockHer£9,305 GBP

32 data points across 17 retailers

19 retailers£2,456 GBP to £3,992 GBP

A
Cheapest Retailer
-
£2,456 GBP
A
Retailer 2
-
£2,572 GBP
View
A
Retailer 3
-
£2,644 GBP
View
Retailer 4
-
£2,667 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£2,784 GBP
View
Retailer 6
-
£2,926 GBP
View
Price last confirmed 30 days ago
A
Retailer 7
-
£3,182 GBP
View
Final sale: no returns
A
Retailer 8
-
£3,301 GBP
View
Retailer 9
-
£3,475 GBP
View
Price last confirmed 29 days ago
A
Retailer 10
-
£3,504 GBP
View
A
Retailer 11
-
£3,504 GBP
View
A
Retailer 12
-
£3,623 GBP
View
A
Retailer 13
-
£3,652 GBP
View
A
Retailer 14
-
£3,751 GBP
View
B+
Retailer 15
-
£3,992 GBP
View
Retailer 16
-
£4,156 GBP
View
Price last confirmed 38 days ago
Retailer 17
-
£5,542 GBP
View
Price last confirmed 30 days ago
Retailer 18
-
£8,907 GBP
View
Price last confirmed 16 days ago
Most Expensive
RockHer
1c31b0dc0 · Oct 24
£9,305 GBP
$12,455 USD
View
Price last confirmed 13 days ago
18 more retailers have this diamond
Prices start from £2,456 GBPSave up to £1,536 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
£2,456 GBP