CaratHunter
Plans
Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

ID • D/SI2 • GIA 2231615608

Certificate GIA 2231615608

Diamond specifications and retailer prices

From £4,429 GBP
$5,935 USD
As of October 30, 2026
Save £5,340 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £9,769 GBP at NZ Jewellers · As of October 27, 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 D 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 2231615608. Listed at 22 retailers as of October 27, 2026, with prices from £4,429 to £9,769, a £5,340 spread on the same certified stone. NZ Jewellers lists it at £9,769. 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.37°
Pavilion angle39.57°
OriginNatural
Grading LabGIA
CertificateGIA 2231615608
Dimensions8.61 × 6.24 × 4.15 mm
L/W Ratio1.38
Girdle conditionExtremely Thick
Key to symbols
Crystal, Feather, Needle
Top View
8.61 mm6.24 mm1.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231615608
Side View
Table 55.0%Crown 40.37°Girdle: STK-ETKPavilion 39.57°Culet: NoneDepth 66.5%

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: Oct 30
Current: £5,536 GBP|Low: £3,851 GBP|High: £8,239 GBP|Avg: £5,446 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8£4,429 GBP
Retailer 6£4,621 GBP
Retailer 2£4,885 GBP
Retailer 7£4,885 GBP
Retailer 10£5,355 GBP
Retailer 5£5,482 GBP
Retailer 1£5,536 GBP
Retailer 9£5,888 GBP
Retailer 4£6,029 GBP
Retailer 3£8,184 GBP

36 data points across 10 retailers

22 retailers£4,429 GBP to £9,769 GBP

A
Cheapest Retailer
-
£4,429 GBP
$5,935 USD
A
Retailer 2
-
£4,524 GBP
$6,062 USD
View
A
Retailer 3
-
£4,615 GBP
$6,184 USD
View
A
Retailer 4
-
£4,621 GBP
$6,192 USD
View
A
Retailer 5
-
£4,679 GBP
$6,269 USD
View
A
Retailer 6
-
£4,885 GBP
$6,545 USD
View
Final sale: no returns
A
Retailer 7
-
£4,885 GBP
$6,545 USD
View
A
Retailer 8
-
£5,201 GBP
$6,969 USD
View
A
Retailer 9
-
£5,291 GBP
$7,090 USD
View
A
Retailer 10
-
£5,355 GBP
A$11,038 AUD
View
A
Retailer 11
-
£5,373 GBP
$7,199 USD
View
A
Retailer 12
-
£5,482 GBP
View
B+
Retailer 13
-
£5,487 GBP
$7,353 USD
View
A
Retailer 14
-
£5,536 GBP
View
B+
Retailer 15
-
£5,859 GBP
$7,850 USD
View
B+
Retailer 16
-
£5,859 GBP
$7,850 USD
View
B+
Retailer 17
-
£5,888 GBP
$7,889 USD
View
B+
Retailer 18
-
£6,029 GBP
€7,693 EUR
View
B+
Retailer 19
-
£6,053 GBP
$8,110 USD
View
B+
Retailer 20
-
£6,106 GBP
$8,181 USD
View
B+
Retailer 21
-
£8,184 GBP
View
Most Expensive
B
NZ Jewellers
ff2703fb-317d-4269-8f8b-875e1eded4cb · Oct 27
£9,769 GBP
$13,090 USD
View
21 more retailers have this diamond
Prices start from £4,429 GBPSave up to £5,340 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
£4,429 GBP