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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6532997591

Certificate GIA 6532997591

Diamond specifications and retailer prices

From £4,538 GBP
$6,080 USD
As of October 28, 2026
Save £5,069 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,607 GBP at NZ Jewellers · As of October 27, 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 I 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 6532997591. Listed at 16 retailers as of October 27, 2026, with prices from £4,538 to £9,607, a £5,069 spread on the same certified stone. NZ Jewellers lists it at £9,607. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532997591
Dimensions9.32 × 6.46 × 3.99 mm
L/W Ratio1.44
Top View
9.32 mm6.46 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532997591
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.7%

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 28
Current: £9,607 GBP|Low: £4,336 GBP|High: £9,743 GBP|Avg: £6,051 GBP|-1.4%
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
October 29, 2026
Retailer 14£4,336 GBP
Retailer 5£4,538 GBP
Retailer 7£4,803 GBP
Retailer 4£4,844 GBP
Retailer 15£5,203 GBP
Retailer 3£5,284 GBP
Retailer 16£5,389 GBP
Retailer 11£5,391 GBP
Retailer 10£5,634 GBP
Retailer 6£5,769 GBP
Retailer 12£5,769 GBP
Retailer 13£5,963 GBP
Retailer 8£6,004 GBP
Retailer 9£6,267 GBP
Retailer 2£8,048 GBP
NZ Jewellers£9,607 GBP

38 data points across 16 retailers

16 retailers£4,538 GBP to £9,607 GBP

Retailer 1
-
£4,336 GBP
$5,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
£4,538 GBP
$6,080 USD
View
Retailer 3
-
£4,803 GBP
$6,436 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£4,844 GBP
$6,490 USD
View
B+
Retailer 5
-
£5,203 GBP
$6,972 USD
View
Retailer 6
-
£5,284 GBP
$7,080 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£5,389 GBP
$7,220 USD
View
B+
Retailer 8
-
£5,391 GBP
View
B+
Retailer 9
-
£5,634 GBP
View
B
Retailer 10
-
£5,769 GBP
$7,730 USD
View
B
Retailer 11
-
£5,769 GBP
$7,730 USD
View
B
Retailer 12
-
£5,963 GBP
$7,990 USD
View
B
Retailer 13
-
£6,004 GBP
$8,045 USD
View
B
Retailer 14
-
£6,267 GBP
€7,997 EUR
View
B
Retailer 15
-
£8,048 GBP
View
Most Expensive
B
NZ Jewellers
592d6834-35f2-400e-9273-b620af258013 · Oct 27
£9,607 GBP
$12,872 USD
View
15 more retailers have this diamond
Prices start from £4,538 GBPSave up to £5,069 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
£4,538 GBP