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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 3555384405

Certificate GIA 3555384405

Diamond specifications and retailer prices

From £3,328 GBP
$4,466 USD
As of November 1, 2026
Save £3,847 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,175 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H 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 3555384405. Listed at 20 retailers as of October 26, 2026, with prices from £3,328 to £7,175, a £3,847 spread on the same certified stone. Wholesale Diamonds Direct lists it at £7,175. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555384405
Dimensions7.46 × 5.94 × 4.06 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
7.46 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555384405
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.4%

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: £3,940 GBP|Low: £3,319 GBP|High: £7,482 GBP|Avg: £4,624 GBP|-3.1%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Wholesale Diamonds Direct
November 2, 2026
Retailer 4£3,328 GBP
Retailer 16£3,358 GBP
Retailer 3£3,538 GBP
Retailer 6£3,730 GBP
Retailer 21£3,781 GBP
Retailer 10£3,797 GBP
Retailer 9£3,878 GBP
Retailer 1£3,940 GBP
Retailer 8£3,964 GBP
Retailer 20£3,982 GBP
Retailer 12£4,046 GBP
Retailer 2£4,215 GBP
Retailer 17£4,260 GBP
Retailer 15£4,336 GBP
Retailer 13£4,888 GBP
Retailer 14£4,888 GBP
Retailer 18£4,940 GBP
Retailer 11£5,052 GBP
Retailer 19£5,298 GBP
Retailer 7£5,489 GBP
Retailer 5£6,582 GBP
Wholesale Diamonds Direct£7,175 GBP

11 data points across 22 retailers

20 retailers£3,328 GBP to £7,175 GBP

A
Cheapest Retailer
-
£3,328 GBP
$4,466 USD
A
Retailer 2
-
£3,358 GBP
HK$35,200 HKD
View
B+
Retailer 3
-
£3,538 GBP
$4,748 USD
View
B+
Retailer 4
-
£3,730 GBP
€4,767 EUR
View
B+
Retailer 5
-
£3,781 GBP
$5,074 USD
View
Final sale: no returns
B+
Retailer 6
-
£3,797 GBP
$5,095 USD
View
B+
Retailer 7
-
£3,878 GBP
$5,204 USD
View
B+
Retailer 8
-
£3,914 GBP
$5,253 USD
View
B+
Retailer 9
-
£3,940 GBP
A$8,135 AUD
View
B+
Retailer 10
-
£3,964 GBP
$5,320 USD
View
B+
Retailer 11
-
£3,982 GBP
$5,343 USD
View
B+
Retailer 12
-
£4,046 GBP
$5,430 USD
View
B+
Retailer 13
-
£4,215 GBP
View
B+
Retailer 14
-
£4,260 GBP
View
B+
Retailer 15
-
£4,336 GBP
$5,818 USD
View
B+
Retailer 16
-
£4,940 GBP
€6,313 EUR
View
B
Retailer 17
-
£5,298 GBP
$7,110 USD
View
B
Retailer 18
-
£5,489 GBP
ZAR 118,999 ZAR
View
B
Retailer 19
-
£6,582 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
596132979 · Oct 26
£7,175 GBP
$9,629 USD
View
19 more retailers have this diamond
Prices start from £3,328 GBPSave up to £3,847 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
£3,328 GBP