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Oval|Natural|GIA

1.51ct L SI2 Oval Natural Diamond

ID • L/SI2 • GIA 9

Certificate GIA 9

Diamond specifications and retailer prices

From £3,116 GBP
As of November 6, 2026
Save £3,763 GBP (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,879 GBP at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 7 retailers as of November 5, 2026, with prices from £3,116 to £6,879, a £3,763 spread on the same certified stone. NZ Jewellers lists it at £6,879. 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
L
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 9
Dimensions8.76 × 6.52 × 4.10 mm
L/W Ratio1.34
Top View
8.76 mm6.52 mm1.51 ctL / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 9
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,879 GBP|Low: £3,116 GBP|High: £6,879 GBP|Avg: £4,139 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 29, 2026
Retailer 3£3,116 GBP
Retailer 7£3,290 GBP
Retailer 2£3,727 GBP
Retailer 4£3,727 GBP
Retailer 6£3,727 GBP
Retailer 5£4,300 GBP
NZ Jewellers£6,879 GBP

2 data points across 7 retailers

7 retailers£3,116 GBP to £6,879 GBP

B
Cheapest Retailer
-
£3,116 GBP
B
Retailer 2
-
£3,290 GBP
View
Retailer 3
-
£3,727 GBP
View
Price last confirmed 8 days ago
B
Retailer 4
-
£3,727 GBP
View
B
Retailer 5
-
£3,727 GBP
View
B
Retailer 6
-
£4,300 GBP
View
Most Expensive
C
NZ Jewellers
13569b01-be51-4891-8d48-5415c6f2616a · Nov 5
£6,879 GBP
$9,208 USD
View
6 more retailers have this diamond
Prices start from £3,116 GBPSave up to £3,763 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
£3,116 GBP