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Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 6542974224

Certificate GIA 6542974224

Diamond specifications and retailer prices

From £3,410 GBP
HK$35,700 HKD
As of November 1, 2026
Save £4,203 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,613 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 G 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 6542974224. Listed at 20 retailers as of October 30, 2026, with prices from £3,410 to £7,613, a £4,203 spread on the same certified stone. NZ Jewellers lists it at £7,613. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542974224
Dimensions8.85 × 6.45 × 4.20 mm
L/W Ratio1.37
Top View
8.85 mm6.45 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542974224
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 65.1%

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 1
Current: £7,613 GBP|Low: £3,382 GBP|High: £7,839 GBP|Avg: £4,507 GBP|-2.9%
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
November 1, 2026
Retailer 15£3,410 GBP
Retailer 3£3,452 GBP
Retailer 9£3,596 GBP
Retailer 12£3,652 GBP
Retailer 6£3,672 GBP
Retailer 10£3,806 GBP
Retailer 4£4,123 GBP
Retailer 5£4,123 GBP
Retailer 8£4,123 GBP
Retailer 20£4,145 GBP
Retailer 14£4,367 GBP
Retailer 2£4,410 GBP
Retailer 17£4,418 GBP
Retailer 19£4,418 GBP
Retailer 18£4,568 GBP
Retailer 16£4,679 GBP
Retailer 11£4,758 GBP
Retailer 7£5,209 GBP
Retailer 13£6,706 GBP
NZ Jewellers£7,613 GBP

24 data points across 20 retailers

20 retailers£3,410 GBP to £7,613 GBP

A
Cheapest Retailer
-
£3,410 GBP
HK$35,700 HKD
A
Retailer 2
-
£3,452 GBP
$4,625 USD
View
A
Retailer 3
-
£3,596 GBP
$4,818 USD
View
A
Retailer 4
-
£3,652 GBP
$4,893 USD
View
A
Retailer 5
-
£3,672 GBP
$4,920 USD
View
A
Retailer 6
-
£3,806 GBP
$5,100 USD
View
Final sale: no returns
A
Retailer 7
-
£4,123 GBP
$5,525 USD
View
A
Retailer 8
-
£4,123 GBP
$5,525 USD
View
A
Retailer 9
-
£4,123 GBP
$5,525 USD
View
A
Retailer 10
-
£4,145 GBP
$5,554 USD
View
A
Retailer 11
-
£4,367 GBP
View
A
Retailer 12
-
£4,410 GBP
View
A
Retailer 13
-
£4,418 GBP
$5,920 USD
View
A
Retailer 14
-
£4,418 GBP
$5,920 USD
View
A
Retailer 15
-
£4,568 GBP
$6,120 USD
View
A
Retailer 16
-
£4,679 GBP
€5,971 EUR
View
B+
Retailer 17
-
£4,758 GBP
$6,375 USD
View
B+
Retailer 18
-
£5,209 GBP
$6,980 USD
View
B+
Retailer 19
-
£6,706 GBP
View
Most Expensive
B
NZ Jewellers
cb77cd7d-8c2c-4a6e-8b6f-273c1d609289 · Oct 30
£7,613 GBP
$10,201 USD
View
19 more retailers have this diamond
Prices start from £3,410 GBPSave up to £4,203 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
£3,410 GBP