Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 1535148182

Certificate GIA 1535148182

Diamond specifications and retailer prices

From £5,554 GBP
CA$10,336 CAD
As of October 30, 2026
Save £890 GBP (14%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £10,510 GBP at NZ Jewellers · As of October 17, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1535148182. Listed at 15 retailers as of October 30, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1535148182
Dimensions8.90 × 6.20 × 4.02 mm
L/W Ratio1.44
Culet sizeNone
Top View
8.90 mm6.20 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1535148182
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £10,510 GBP|Low: £4,929 GBP|High: £10,510 GBP|Avg: £6,249 GBP
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
Retailer 17
October 20, 2026
Retailer 4£4,929 GBP
Retailer 3£4,965 GBP
Retailer 14£5,255 GBP
Retailer 5£5,347 GBP
Retailer 7£5,554 GBP
Retailer 16£5,597 GBP
Retailer 15£5,693 GBP
Retailer 8£5,777 GBP
Retailer 13£5,780 GBP
Retailer 2£5,954 GBP
Retailer 10£5,982 GBP
Retailer 9£6,444 GBP
Retailer 17£6,568 GBP
Retailer 6£6,602 GBP
Retailer 11£6,816 GBP
Retailer 12£8,804 GBP
NZ Jewellers£10,510 GBP

14 data points across 17 retailers

15 retailers£5,554 GBP to £6,444 GBP

Retailer 1
-
£4,929 GBP
$6,604 USD
Price last confirmed 14 days ago
Retailer 2
-
£4,965 GBP
$6,652 USD
View
Price last confirmed 13 days ago
Retailer 3
-
£5,255 GBP
$7,041 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£5,347 GBP
$7,164 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
£5,554 GBP
CA$10,336 CAD
View
Retailer 6
-
£5,597 GBP
$7,499 USD
View
Price last confirmed 15 days ago
Retailer 7
-
£5,693 GBP
$7,628 USD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
£5,777 GBP
$7,740 USD
View
Retailer 9
-
£5,780 GBP
$7,745 USD
View
Price last confirmed 16 days ago
Retailer 10
-
£5,954 GBP
View
Price last confirmed 13 days ago
Retailer 11
-
£5,982 GBP
View
Price last confirmed 13 days ago
B
Retailer 12
-
£6,444 GBP
$8,634 USD
View
Retailer 13
-
£6,568 GBP
$8,801 USD
View
Price last confirmed 14 days ago
Retailer 14
-
£8,804 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
94a047a7-113a-4925-bb3a-23610e73e6c3 · Oct 17
£10,510 GBP
$14,082 USD
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from £5,554 GBPSave up to £890 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
£5,554 GBP