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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7513033079

Certificate GIA 7513033079

Diamond specifications and retailer prices

From £1,911 GBP
HK$20,000 HKD
As of October 31, 2026
Save £2,367 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,277 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7513033079. Listed at 14 retailers as of October 30, 2026, with prices from £1,911 to £4,277, a £2,367 spread on the same certified stone. NZ Jewellers lists it at £4,277. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7513033079
Dimensions7.38 × 7.35 × 4.55 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Cert comments
Clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Needle
Top View
7.38 mm7.35 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7513033079
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.8%

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: £4,277 GBP|Low: £1,891 GBP|High: £4,313 GBP|Avg: £2,787 GBP|-0.8%
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
October 31, 2026
Retailer 6£1,911 GBP
Retailer 2£1,946 GBP
Retailer 3£2,267 GBP
Retailer 5£2,379 GBP
Retailer 12£2,455 GBP
Retailer 10£2,549 GBP
Retailer 13£2,629 GBP
Retailer 4£2,653 GBP
Retailer 8£2,826 GBP
Retailer 7£2,833 GBP
Retailer 9£3,186 GBP
Retailer 11£4,128 GBP
NZ Jewellers£4,277 GBP

25 data points across 13 retailers

14 retailers£1,911 GBP to £4,277 GBP

A
Cheapest Retailer
-
£1,911 GBP
HK$20,000 HKD
A
Retailer 2
-
£1,946 GBP
₹248,378 INR
View
B+
Retailer 3
-
£2,267 GBP
$3,037 USD
View
Final sale: no returns
A
Retailer 4
-
£2,379 GBP
$3,187 USD
View
A
Retailer 5
-
£2,455 GBP
$3,290 USD
View
Retailer 6
-
£2,490 GBP
$3,336 USD
View
Price last confirmed 103 days ago
A
Retailer 7
-
£2,549 GBP
$3,416 USD
View
A
Retailer 8
-
£2,629 GBP
$3,522 USD
View
A
Retailer 9
-
£2,653 GBP
SGD 4,804 SGD
View
A
Retailer 10
-
£2,826 GBP
€3,606 EUR
View
A
Retailer 11
-
£2,833 GBP
$3,796 USD
View
B+
Retailer 12
-
£3,186 GBP
View
B+
Retailer 13
-
£4,128 GBP
View
Most Expensive
B
NZ Jewellers
49506521-27cc-430f-8745-cf51fd62e9ed · Oct 30
£4,277 GBP
$5,731 USD
View
13 more retailers have this diamond
Prices start from £1,911 GBPSave up to £2,367 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
£1,911 GBP