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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1533884456

Certificate GIA 1533884456

Diamond specifications and retailer prices

From £3,707 GBP
HK$38,800 HKD
As of October 31, 2026
Save £4,731 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £8,438 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533884456. Listed at 21 retailers as of October 30, 2026, with prices from £3,707 to £8,438, a £4,731 spread on the same certified stone. NZ Jewellers lists it at £8,438. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1533884456
Dimensions7.36 × 7.32 × 4.50 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Natural
Top View
7.36 mm7.32 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1533884456
Side View
Table 59.0%Crown 35°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 61.5%

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: Oct 31
Current: £8,438 GBP|Low: £3,601 GBP|High: £8,438 GBP|Avg: £4,824 GBP|+0.5%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 17£3,707 GBP
Retailer 15£3,754 GBP
Retailer 14£3,832 GBP
Retailer 3£3,857 GBP
Retailer 13£3,909 GBP
Retailer 2£3,921 GBP
Retailer 4£4,138 GBP
Retailer 10£4,395 GBP
Retailer 11£4,395 GBP
Retailer 12£4,395 GBP
Retailer 18£4,675 GBP
Retailer 6£4,701 GBP
Retailer 19£4,715 GBP
Retailer 20£4,993 GBP
Retailer 5£5,090 GBP
Retailer 21£5,173 GBP
Retailer 22£5,213 GBP
Retailer 7£5,262 GBP
Retailer 8£5,349 GBP
Retailer 16£5,777 GBP
Retailer 9£7,186 GBP
NZ Jewellers£8,438 GBP

18 data points across 22 retailers

21 retailers£3,707 GBP to £8,438 GBP

A
Cheapest Retailer
-
£3,707 GBP
HK$38,800 HKD
Retailer 2
-
£3,832 GBP
$5,135 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£3,857 GBP
$5,168 USD
View
A
Retailer 4
-
£3,909 GBP
$5,238 USD
View
A
Retailer 5
-
£3,921 GBP
$5,254 USD
View
A
Retailer 6
-
£4,138 GBP
$5,544 USD
View
Final sale: no returns
A
Retailer 7
-
£4,395 GBP
$5,889 USD
View
A
Retailer 8
-
£4,395 GBP
$5,889 USD
View
A
Retailer 9
-
£4,395 GBP
$5,889 USD
View
A
Retailer 10
-
£4,675 GBP
$6,264 USD
View
A
Retailer 11
-
£4,701 GBP
View
A
Retailer 12
-
£4,715 GBP
View
B+
Retailer 13
-
£4,909 GBP
$6,577 USD
View
B+
Retailer 14
-
£4,993 GBP
$6,690 USD
View
B+
Retailer 15
-
£5,090 GBP
$6,820 USD
View
B+
Retailer 16
-
£5,173 GBP
$6,931 USD
View
B+
Retailer 17
-
£5,213 GBP
€6,652 EUR
View
B+
Retailer 18
-
£5,262 GBP
$7,050 USD
View
B+
Retailer 19
-
£5,777 GBP
$7,740 USD
View
B+
Retailer 20
-
£7,186 GBP
View
Most Expensive
B
NZ Jewellers
28c90525-32d6-4e41-a6f6-e43eb91e458b · Oct 30
£8,438 GBP
$11,306 USD
View
20 more retailers have this diamond
Prices start from £3,707 GBPSave up to £4,731 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 Round
£3,707 GBP