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Round|Natural|IGI

1.50ct I SI2 Round Natural Diamond

VG • I/SI2 • IGI 626482476

Shape and cutting style on the report: Round brilliant

Certificate IGI 626482476

Diamond specifications and retailer prices

From £2,080 GBP
As of November 4, 2026
Save £2,155 GBP (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,235 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 626482476. Listed at 17 retailers as of November 4, 2026, with prices from £2,080 to £4,235, a £2,155 spread on the same certified stone. NZ Jewellers lists it at £4,235. 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

1.50
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 626482476
Dimensions7.14 × 7.02 × 4.62 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
7.14 mm7.02 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 626482476
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 65.0%

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 4
Current: £4,235 GBP|Low: £1,967 GBP|High: £4,263 GBP|Avg: £2,765 GBP|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 13£1,974 GBP
Retailer 12£2,080 GBP
Retailer 10£2,211 GBP
Retailer 6£2,243 GBP
Retailer 5£2,431 GBP
Retailer 14£2,431 GBP
Retailer 3£2,452 GBP
Retailer 4£2,481 GBP
Retailer 15£2,524 GBP
Retailer 16£2,537 GBP
Retailer 2£2,615 GBP
Retailer 8£2,805 GBP
Retailer 9£2,824 GBP
Retailer 7£3,742 GBP
Retailer 11£4,054 GBP
NZ Jewellers£4,235 GBP

35 data points across 16 retailers

17 retailers£2,080 GBP to £4,235 GBP

Retailer 1
-
£1,974 GBP
Price last confirmed 7 days ago
A
Retailer 2
-
£2,080 GBP
View
B+
Retailer 3
-
£2,173 GBP
View
A
Retailer 4
-
£2,211 GBP
View
A
Retailer 5
-
£2,243 GBP
View
Final sale: no returns
Retailer 6
-
£2,431 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,431 GBP
View
B+
Retailer 8
-
£2,452 GBP
View
B+
Retailer 9
-
£2,481 GBP
View
B+
Retailer 10
-
£2,524 GBP
View
B+
Retailer 11
-
£2,537 GBP
View
A
Retailer 12
-
£2,615 GBP
View
B+
Retailer 13
-
£2,805 GBP
View
A
Retailer 14
-
£2,824 GBP
View
B+
Retailer 15
-
£3,742 GBP
View
B+
Retailer 16
-
£4,054 GBP
View
Most Expensive
B+
NZ Jewellers
eb4cc0c5-cc83-4325-91cf-d9bdd5664e4d · Nov 5
£4,235 GBP
$5,700 USD
View
16 more retailers have this diamond
Prices start from £2,080 GBPSave up to £2,155 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
1.50ct Round
£2,080 GBP