Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 2567156754

Certificate GIA 2567156754

Diamond specifications and retailer prices

From £3,635 GBP
$4,871 USD
As of October 26, 2026
Save £442 GBP (11%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £7,693 GBP at NZ Jewellers · As of October 20, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2567156754. Listed at 25 retailers as of October 26, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567156754
Dimensions9.44 × 6.09 × 3.96 mm
L/W Ratio1.55
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.44 mm6.09 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567156754
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: £7,693 GBP|Low: £3,029 GBP|High: £7,966 GBP|Avg: £4,515 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
October 24, 2026
Retailer 18£3,474 GBP
Retailer 7£3,509 GBP
Retailer 5£3,635 GBP
Retailer 17£3,635 GBP
Retailer 11£3,681 GBP
Retailer 20£3,846 GBP
Retailer 15£4,015 GBP
Retailer 6£4,077 GBP
Retailer 3£4,117 GBP
Retailer 10£4,167 GBP
Retailer 16£4,167 GBP
Retailer 22£4,167 GBP
Retailer 23£4,241 GBP
Retailer 4£4,353 GBP
Retailer 9£4,360 GBP
Retailer 2£4,390 GBP
Retailer 21£4,541 GBP
Retailer 8£4,547 GBP
Retailer 13£4,717 GBP
Retailer 12£4,808 GBP
Retailer 14£6,664 GBP
Retailer 19£6,813 GBP
NZ Jewellers£7,693 GBP

36 data points across 23 retailers

25 retailers£3,635 GBP to £4,077 GBP

Retailer 1
-
£3,474 GBP
$4,655 USD
Price last confirmed 13 days ago
Retailer 2
-
£3,509 GBP
$4,702 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£3,635 GBP
$4,870 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
£3,635 GBP
$4,871 USD
View
Retailer 5
-
£3,681 GBP
$4,932 USD
View
Price last confirmed 11 days ago
Retailer 6
-
£4,015 GBP
CA$7,472 CAD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£4,077 GBP
$5,463 USD
View
Retailer 8
-
£4,117 GBP
$5,516 USD
View
Price last confirmed 14 days ago
Retailer 9
-
£4,167 GBP
$5,583 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£4,167 GBP
$5,583 USD
View
Price last confirmed 10 days ago
Retailer 11
-
£4,167 GBP
$5,583 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£4,241 GBP
$5,682 USD
View
Price last confirmed 11 days ago
Retailer 13
-
£4,353 GBP
$5,833 USD
View
Price last confirmed 9 days ago
Retailer 14
-
£4,360 GBP
$5,842 USD
View
Price last confirmed 10 days ago
Retailer 15
-
£4,390 GBP
View
Price last confirmed 8 days ago
Retailer 16
-
£4,541 GBP
View
Price last confirmed 32 days ago
Retailer 17
-
£4,547 GBP
$6,093 USD
View
Price last confirmed 7 days ago
Retailer 18
-
£4,657 GBP
$6,240 USD
View
Price last confirmed 10 days ago
Retailer 19
-
£4,657 GBP
$6,240 USD
View
Price last confirmed 10 days ago
Retailer 20
-
£4,717 GBP
€6,019 EUR
View
Price last confirmed 9 days ago
Retailer 21
-
£4,806 GBP
$6,440 USD
View
Price last confirmed 11 days ago
Retailer 22
-
£4,808 GBP
$6,442 USD
View
Price last confirmed 9 days ago
Retailer 23
-
£6,664 GBP
$8,930 USD
View
Price last confirmed 9 days ago
Retailer 24
-
£6,813 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
4a81c399-71dd-4efe-a5d9-33a5c9428a08 · Oct 20
£7,693 GBP
$10,308 USD
View
Price last confirmed 11 days ago
24 more retailers have this diamond
Prices start from £3,635 GBPSave up to £442 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
£3,635 GBP