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Oval|Natural|GIA

1.51ct M SI2 Oval Natural Diamond

VG • M/SI2 • GIA 6233704086

Certificate GIA 6233704086

Diamond specifications and retailer prices

From £1,504 GBP
As of November 3, 2026
Save £2,164 GBP (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,668 GBP at NZ Jewellers · As of November 2, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6233704086. Listed at 5 retailers as of November 2, 2026, with prices from £1,504 to £3,668, a £2,164 spread on the same certified stone. NZ Jewellers lists it at £3,668. 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
M
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.72°
Pavilion angle36.07°
OriginNatural
Grading LabGIA
CertificateGIA 6233704086
Dimensions9.09 × 6.55 × 3.71 mm
L/W Ratio1.39
Top View
9.09 mm6.55 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6233704086
Side View
Table 64.0%Crown 38.72°GirdlePavilion 36.07°CuletDepth 56.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £3,668 GBP|Low: £1,504 GBP|High: £3,668 GBP|Avg: £1,902 GBP|+15.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3£1,504 GBP
Retailer 2£1,547 GBP
Retailer 5£1,573 GBP
Retailer 4£1,591 GBP
Retailer 7£1,688 GBP
Retailer 6£1,869 GBP
NZ Jewellers£3,668 GBP

26 data points across 7 retailers

5 retailers£1,504 GBP to £3,668 GBP

B+
Cheapest Retailer
-
£1,504 GBP
B+
Retailer 2
-
£1,547 GBP
View
B+
Retailer 3
-
£1,573 GBP
View
B+
Retailer 4
-
£1,591 GBP
View
Most Expensive
C
NZ Jewellers
6b1865a8-1f44-4acf-9985-9238a24528ac · Nov 2
£3,668 GBP
$4,910 USD
View
4 more retailers have this diamond
Prices start from £1,504 GBPSave up to £2,164 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
£1,504 GBP