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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2233843136

Certificate GIA 2233843136

Diamond specifications and retailer prices

From £3,893 GBP
$5,216 USD
As of November 1, 2026
Save £4,347 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £8,239 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2233843136. Listed at 17 retailers as of October 30, 2026, with prices from £3,893 to £8,239, a £4,347 spread on the same certified stone. NZ Jewellers lists it at £8,239. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2233843136
Dimensions7.93 × 5.95 × 4.02 mm
L/W Ratio1.33
Culet sizeNone
Top View
7.93 mm5.95 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2233843136
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.6%

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: £8,239 GBP|Low: £3,776 GBP|High: £8,510 GBP|Avg: £5,158 GBP|-3.2%
NZ Jewellers
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
November 1, 2026
Retailer 7£3,893 GBP
Retailer 13£4,120 GBP
Retailer 8£4,154 GBP
Retailer 4£4,463 GBP
Retailer 5£4,463 GBP
Retailer 16£4,463 GBP
Retailer 17£4,544 GBP
Retailer 10£4,686 GBP
Retailer 3£4,971 GBP
Retailer 15£4,971 GBP
Retailer 14£5,142 GBP
Retailer 6£5,150 GBP
Retailer 11£5,384 GBP
Retailer 9£5,432 GBP
Retailer 12£7,140 GBP
Retailer 2£7,259 GBP
NZ Jewellers£8,239 GBP

43 data points across 17 retailers

17 retailers£3,893 GBP to £8,239 GBP

A
Cheapest Retailer
-
£3,893 GBP
$5,216 USD
B+
Retailer 2
-
£4,120 GBP
$5,520 USD
View
Final sale: no returns
B+
Retailer 3
-
£4,154 GBP
$5,566 USD
View
B+
Retailer 4
-
£4,463 GBP
$5,980 USD
View
B+
Retailer 5
-
£4,463 GBP
$5,980 USD
View
B+
Retailer 6
-
£4,463 GBP
$5,980 USD
View
B+
Retailer 7
-
£4,544 GBP
$6,088 USD
View
B+
Retailer 8
-
£4,686 GBP
View
B+
Retailer 9
-
£4,888 GBP
$6,550 USD
View
B+
Retailer 10
-
£4,971 GBP
$6,660 USD
View
B+
Retailer 11
-
£4,971 GBP
$6,660 USD
View
B+
Retailer 12
-
£5,142 GBP
$6,890 USD
View
B+
Retailer 13
-
£5,150 GBP
$6,900 USD
View
B+
Retailer 14
-
£5,384 GBP
€6,870 EUR
View
B
Retailer 15
-
£7,140 GBP
$9,567 USD
View
B
Retailer 16
-
£7,259 GBP
View
Most Expensive
B
NZ Jewellers
2c317112-8905-4cc0-8e10-deb747694a85 · Oct 30
£8,239 GBP
$11,040 USD
View
16 more retailers have this diamond
Prices start from £3,893 GBPSave up to £4,347 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 Radiant
£3,893 GBP