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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6385389564

Certificate GIA 6385389564

Diamond specifications and retailer prices

From £4,267 GBP
$5,717 USD
As of October 31, 2026
Save £4,167 GBP (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £8,434 GBP at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6385389564. Listed at 18 retailers as of October 30, 2026, with prices from £4,267 to £8,434, a £4,167 spread on the same certified stone. NZ Jewellers lists it at £8,434. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385389564
Dimensions9.41 × 6.49 × 3.87 mm
L/W Ratio1.45
Top View
9.41 mm6.49 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385389564
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,866 GBP|Low: £4,362 GBP|High: £7,337 GBP|Avg: £5,198 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5£4,362 GBP
Retailer 3£4,498 GBP
Retailer 7£4,557 GBP
Retailer 1£4,866 GBP
Retailer 6£5,120 GBP
Retailer 4£5,511 GBP
Retailer 2£7,250 GBP

42 data points across 7 retailers

18 retailers£4,267 GBP to £8,434 GBP

B+
Cheapest Retailer
-
£4,267 GBP
$5,717 USD
Retailer 2
-
£4,362 GBP
$5,845 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£4,383 GBP
$5,873 USD
View
B+
Retailer 4
-
£4,397 GBP
$5,892 USD
View
B+
Retailer 5
-
£4,498 GBP
View
B
Retailer 6
-
£4,557 GBP
$6,106 USD
View
B
Retailer 7
-
£4,654 GBP
$6,236 USD
View
B
Retailer 8
-
£4,866 GBP
View
B
Retailer 9
-
£4,866 GBP
$6,520 USD
View
B
Retailer 10
-
£4,866 GBP
$6,520 USD
View
B
Retailer 11
-
£5,030 GBP
$6,740 USD
View
B
Retailer 12
-
£5,042 GBP
$6,756 USD
View
B
Retailer 13
-
£5,120 GBP
$6,860 USD
View
B
Retailer 14
-
£5,161 GBP
$6,916 USD
View
B
Retailer 15
-
£5,511 GBP
€7,032 EUR
View
B
Retailer 16
-
£5,818 GBP
$7,796 USD
View
B
Retailer 17
-
£7,250 GBP
View
Most Expensive
C
NZ Jewellers
b8b2ac1c-4272-4629-b448-ab994d4d6b2c · Oct 30
£8,434 GBP
$11,300 USD
View
17 more retailers have this diamond
Prices start from £4,267 GBPSave up to £4,167 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.

B+
1.51ct Oval
£4,267 GBP