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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 2557576321

Certificate GIA 2557576321

Diamond specifications and retailer prices

From £3,330 GBP
$4,469 USD
As of November 2, 2026
Save £3,873 GBP (54%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £7,203 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 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 2557576321. Listed at 26 retailers as of October 30, 2026, with prices from £3,330 to £7,203, a £3,873 spread on the same certified stone. NZ Jewellers lists it at £7,203. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 2557576321
Dimensions9.46 × 6.05 × 3.92 mm
L/W Ratio1.56
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity
Top View
9.46 mm6.05 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2557576321
Side View
Table 63.0%Crown 37.9°Girdle: MED-VTKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £7,203 GBP|Low: £3,330 GBP|High: £7,203 GBP|Avg: £4,479 GBP|+10.4%
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 12
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Retailer 17
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 2, 2026
Retailer 7£3,330 GBP
Retailer 8£3,365 GBP
Retailer 3£3,403 GBP
Retailer 16£3,403 GBP
Retailer 25£3,445 GBP
Retailer 9£3,601 GBP
Retailer 18£3,659 GBP
Retailer 2£3,832 GBP
Retailer 11£3,860 GBP
Retailer 13£3,902 GBP
Retailer 24£3,902 GBP
Retailer 19£3,970 GBP
Retailer 4£4,003 GBP
Retailer 20£4,058 GBP
Retailer 14£4,134 GBP
Retailer 22£4,201 GBP
Retailer 10£4,262 GBP
Retailer 12£4,262 GBP
Retailer 5£4,306 GBP
Retailer 15£4,404 GBP
Retailer 6£4,502 GBP
Retailer 21£4,600 GBP
Retailer 17£6,238 GBP
Retailer 23£6,346 GBP
NZ Jewellers£7,203 GBP

20 data points across 25 retailers

26 retailers£3,330 GBP to £7,203 GBP

A
Cheapest Retailer
-
£3,330 GBP
$4,469 USD
A
Retailer 2
-
£3,365 GBP
$4,515 USD
View
A
Retailer 3
-
£3,403 GBP
$4,566 USD
View
A
Retailer 4
-
£3,403 GBP
$4,566 USD
View
A
Retailer 5
-
£3,445 GBP
$4,623 USD
View
A
Retailer 6
-
£3,547 GBP
A$7,323 AUD
View
A
Retailer 7
-
£3,601 GBP
$4,832 USD
View
Final sale: no returns
Retailer 8
-
£3,659 GBP
$4,910 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
£3,832 GBP
CA$7,141 CAD
View
A
Retailer 10
-
£3,860 GBP
$5,180 USD
View
A
Retailer 11
-
£3,902 GBP
$5,236 USD
View
A
Retailer 12
-
£3,902 GBP
$5,236 USD
View
A
Retailer 13
-
£3,970 GBP
$5,327 USD
View
A
Retailer 14
-
£4,003 GBP
$5,372 USD
View
B+
Retailer 15
-
£4,058 GBP
View
A
Retailer 16
-
£4,134 GBP
$5,547 USD
View
A
Retailer 17
-
£4,201 GBP
View
A
Retailer 18
-
£4,262 GBP
$5,720 USD
View
A
Retailer 19
-
£4,262 GBP
$5,720 USD
View
A
Retailer 20
-
£4,306 GBP
$5,778 USD
View
B+
Retailer 21
-
£4,404 GBP
$5,910 USD
View
B+
Retailer 22
-
£4,502 GBP
$6,041 USD
View
B+
Retailer 23
-
£4,600 GBP
€5,879 EUR
View
B
Retailer 24
-
£6,238 GBP
$8,371 USD
View
B
Retailer 25
-
£6,346 GBP
View
Most Expensive
B
NZ Jewellers
d2ab3c1f-a838-4bcb-bc8e-6cbec82ee8cc · Oct 30
£7,203 GBP
$9,666 USD
View
25 more retailers have this diamond
Prices start from £3,330 GBPSave up to £3,873 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
£3,330 GBP