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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 2564016972

Certificate GIA 2564016972

Diamond specifications and retailer prices

From £4,416 GBP
HK$46,300 HKD
As of November 1, 2026
Save £5,526 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £9,942 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 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 2564016972. Listed at 22 retailers as of October 30, 2026, with prices from £4,416 to £9,942, a £5,526 spread on the same certified stone. NZ Jewellers lists it at £9,942. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564016972
Dimensions7.77 × 5.73 × 3.73 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
7.77 mm5.73 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564016972
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.2%

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: £4,494 GBP|Low: £4,378 GBP|High: £8,384 GBP|Avg: £5,749 GBP|-1.8%
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
November 2, 2026
Retailer 14£4,416 GBP
Retailer 1£4,494 GBP
Retailer 16£4,903 GBP
Retailer 8£5,039 GBP
Retailer 4£5,477 GBP
Retailer 3£5,487 GBP
Retailer 5£5,487 GBP
Retailer 9£5,601 GBP
Retailer 11£5,606 GBP
Retailer 15£5,733 GBP
Retailer 6£5,944 GBP
Retailer 2£6,036 GBP
Retailer 7£6,121 GBP
Retailer 10£6,139 GBP
Retailer 13£7,303 GBP
Retailer 12£8,285 GBP

24 data points across 16 retailers

22 retailers£4,416 GBP to £9,942 GBP

A
Cheapest Retailer
-
£4,416 GBP
HK$46,300 HKD
A
Retailer 2
-
£4,494 GBP
₹574,331 INR
View
A
Retailer 3
-
£4,903 GBP
$6,580 USD
View
B+
Retailer 4
-
£5,030 GBP
$6,750 USD
View
Retailer 5
-
£5,039 GBP
SGD 9,138 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
£5,137 GBP
$6,894 USD
View
B+
Retailer 7
-
£5,137 GBP
$6,894 USD
View
B+
Retailer 8
-
£5,477 GBP
$7,350 USD
View
B+
Retailer 9
-
£5,487 GBP
$7,363 USD
View
B+
Retailer 10
-
£5,487 GBP
$7,363 USD
View
Final sale: no returns
B+
Retailer 11
-
£5,601 GBP
View
B+
Retailer 12
-
£5,606 GBP
View
Retailer 13
-
£5,733 GBP
A$11,835 AUD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
£5,944 GBP
$7,977 USD
View
B+
Retailer 15
-
£6,036 GBP
$8,100 USD
View
B+
Retailer 16
-
£6,069 GBP
$8,144 USD
View
B+
Retailer 17
-
£6,121 GBP
$8,214 USD
View
B+
Retailer 18
-
£6,139 GBP
€7,846 EUR
View
B+
Retailer 19
-
£6,859 GBP
$9,204 USD
View
B
Retailer 20
-
£7,303 GBP
ZAR 158,317 ZAR
View
B
Retailer 21
-
£8,285 GBP
View
Most Expensive
B
NZ Jewellers
8e7edc29-9dec-438f-8730-c6dccc384921 · Oct 30
£9,942 GBP
$13,342 USD
View
21 more retailers have this diamond
Prices start from £4,416 GBPSave up to £5,526 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
£4,416 GBP