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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2245063367

Certificate GIA 2245063367

Diamond specifications and retailer prices

From £2,572 GBP
As of November 6, 2026
Save £3,546 GBP (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,118 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J 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 2245063367. Listed at 9 retailers as of November 5, 2026, with prices from £2,572 to £6,118, a £3,546 spread on the same certified stone. NZ Jewellers lists it at £6,118. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.09°
OriginNatural
Grading LabGIA
CertificateGIA 2245063367
Dimensions8.97 × 6.23 × 4.03 mm
L/W Ratio1.44
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.97 mm6.23 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245063367
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 36.09°Culet: NoneDepth 64.7%

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 6
Current: £6,118 GBP|Low: £2,553 GBP|High: £6,522 GBP|Avg: £4,032 GBP|-6.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£2,572 GBP
Retailer 8£3,095 GBP
Retailer 3£3,276 GBP
Retailer 2£3,360 GBP
Retailer 6£3,511 GBP
Retailer 7£3,511 GBP
Retailer 4£3,960 GBP
Retailer 5£5,578 GBP
NZ Jewellers£6,118 GBP

37 data points across 9 retailers

9 retailers£2,572 GBP to £6,118 GBP

A
Cheapest Retailer
-
£2,572 GBP
B+
Retailer 2
-
£3,095 GBP
View
B+
Retailer 3
-
£3,276 GBP
View
B+
Retailer 4
-
£3,360 GBP
View
B+
Retailer 5
-
£3,511 GBP
View
B+
Retailer 6
-
£3,511 GBP
View
B+
Retailer 7
-
£3,960 GBP
View
B
Retailer 8
-
£5,578 GBP
View
Most Expensive
B
NZ Jewellers
eb5d03ee-47f6-44f0-a5a7-9fd7c8999cc4 · Nov 5
£6,118 GBP
$8,189 USD
View
8 more retailers have this diamond
Prices start from £2,572 GBPSave up to £3,546 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 Oval
£2,572 GBP