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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 1569500791

Certificate GIA 1569500791

Diamond specifications and retailer prices

From £1,989 GBP
As of November 6, 2026
Save £2,765 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,754 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 1569500791. Listed at 16 retailers as of November 5, 2026, with prices from £1,989 to £4,754, a £2,765 spread on the same certified stone. NZ Jewellers lists it at £4,754. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1569500791
Dimensions8.89 × 6.34 × 4.03 mm
L/W Ratio1.40
Girdle conditionFaceted
Top View
8.89 mm6.34 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1569500791
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,754 GBP|Low: £1,941 GBP|High: £5,042 GBP|Avg: £3,030 GBP|-5.7%
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
November 6, 2026
Retailer 3£1,989 GBP
Retailer 8£2,126 GBP
Retailer 7£2,432 GBP
Retailer 16£2,468 GBP
Retailer 5£2,519 GBP
Retailer 12£2,565 GBP
Retailer 10£2,611 GBP
Retailer 14£2,673 GBP
Retailer 11£2,769 GBP
Retailer 2£2,953 GBP
Retailer 6£3,011 GBP
Retailer 4£3,193 GBP
Retailer 13£3,331 GBP
Retailer 9£4,199 GBP
Retailer 15£4,551 GBP
NZ Jewellers£4,754 GBP

22 data points across 16 retailers

16 retailers£1,989 GBP to £4,754 GBP

A
Cheapest Retailer
-
£1,989 GBP
A
Retailer 2
-
£2,126 GBP
View
A
Retailer 3
-
£2,432 GBP
View
A
Retailer 4
-
£2,468 GBP
View
A
Retailer 5
-
£2,519 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,565 GBP
View
A
Retailer 7
-
£2,611 GBP
View
A
Retailer 8
-
£2,673 GBP
View
A
Retailer 9
-
£2,769 GBP
View
B+
Retailer 10
-
£2,953 GBP
View
B+
Retailer 11
-
£3,011 GBP
View
B+
Retailer 12
-
£3,193 GBP
View
B+
Retailer 13
-
£3,331 GBP
View
B+
Retailer 14
-
£4,199 GBP
View
B
Retailer 15
-
£4,551 GBP
View
Most Expensive
B
NZ Jewellers
176928f9-5f78-4821-9886-4893f2b51c6c · Nov 5
£4,754 GBP
$6,363 USD
View
15 more retailers have this diamond
Prices start from £1,989 GBPSave up to £2,765 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
£1,989 GBP