CaratHunter
Plans
Oval|Natural|IGI

1.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • IGI 560223633

Shape and cutting style on the report: Oval brilliant

Certificate IGI 560223633

Diamond specifications and retailer prices

From £1,812 GBP
As of November 6, 2026
Save £2,191 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,182 GBP at NZ Jewellers · As of September 29, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 560223633. Listed at 13 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 560223633
Dimensions9.51 × 6.26 × 4.11 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Top View
9.51 mm6.26 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateIGI 560223633
Side View
Table 53.5%Crown 37.5°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 65.7%

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 6
Current: £1,812 GBP|Low: £1,812 GBP|High: £4,061 GBP|Avg: £2,524 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£1,812 GBP
Retailer 8£2,131 GBP
Retailer 7£2,174 GBP
Retailer 6£2,203 GBP
Retailer 3£2,400 GBP
Retailer 5£2,400 GBP
Retailer 4£2,642 GBP
Retailer 2£4,003 GBP

46 data points across 8 retailers

13 retailers£1,812 GBP to £4,003 GBP

A
Cheapest Retailer
-
£1,812 GBP
B+
Retailer 2
-
£2,131 GBP
View
Retailer 3
-
£2,174 GBP
View
Price last confirmed 16 days ago
B+
Retailer 4
-
£2,203 GBP
View
Retailer 5
-
£2,400 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
£2,400 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£2,400 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£2,400 GBP
View
Retailer 9
-
£2,492 GBP
View
Price last confirmed 38 days ago
B+
Retailer 10
-
£2,642 GBP
View
Retailer 11
-
£2,770 GBP
View
Price last confirmed 38 days ago
B
Retailer 12
-
£4,003 GBP
View
Most Expensive
NZ Jewellers
ac3738cd-d413-4774-8af9-3c16756378b0 · Sep 29
£4,182 GBP
$5,597 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from £1,812 GBPSave up to £2,191 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
£1,812 GBP