CaratHunter
Plans
Oval|Natural|IGI

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • IGI 803676877

Shape and cutting style on the report: Oval brilliant

Certificate IGI 803676877

Diamond specifications and retailer prices

From £1,284 GBP
SGD 2,325 SGD
As of October 31, 2026
Save £1,379 GBP (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,663 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 and certified by IGI 803676877. Listed at 6 retailers as of October 26, 2026, with prices from £1,284 to £2,663, a £1,379 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,663. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 803676877
Dimensions9.22 × 6.49 × 3.99 mm
L/W Ratio1.42
Girdle conditionFaceted
Top View
9.22 mm6.49 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803676877
Side View
Table 59.0%Crown 37.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.5%

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 31
Current: £1,530 GBP|Low: £1,260 GBP|High: £2,984 GBP|Avg: £1,932 GBP|-13.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 28, 2026
Retailer 5£1,260 GBP
Retailer 3£1,284 GBP
Retailer 2£1,508 GBP
Retailer 1£1,530 GBP
Retailer 4£1,922 GBP
Retailer 7£2,073 GBP
Retailer 6£2,616 GBP
Wholesale Diamonds Direct£2,663 GBP

26 data points across 8 retailers

6 retailers£1,284 GBP to £2,663 GBP

A
Cheapest Retailer
-
£1,284 GBP
SGD 2,325 SGD
A
Retailer 2
-
£1,508 GBP
$2,021 USD
View
A
Retailer 3
-
£1,530 GBP
$2,050 USD
View
A
Retailer 4
-
£1,922 GBP
$2,576 USD
View
A
Retailer 5
-
£2,073 GBP
$2,778 USD
View
Most Expensive
A
Wholesale Diamonds Direct
419179522 · Oct 26
£2,663 GBP
$3,568 USD
View
5 more retailers have this diamond
Prices start from £1,284 GBPSave up to £1,379 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
£1,284 GBP