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Round|Natural|IGI

1.55ct J VS1 Round Natural Diamond

GD • J/VS1 • IGI 731521738

Shape and cutting style on the report: Round brilliant

Certificate IGI 731521738

Diamond specifications and retailer prices

From £2,830 GBP
As of November 6, 2026
Save £882 GBP (24%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,712 GBP at Aurelinne · As of November 5, 2026
View at Aurelinne

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI 731521738. Listed at 7 retailers as of November 5, 2026, with prices from £2,830 to £3,712, a £882 spread on the same certified stone. Aurelinne lists it at £3,712. 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

1.55
Carat
J
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle28.8°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 731521738
Dimensions7.72 × 7.65 × 4.39 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.72 mm7.65 mm1.55 ctJ / VS1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 731521738
Side View
Table 66.0%Crown 28.8°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 57.1%

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 6
Current: £3,712 GBP|Low: £2,722 GBP|High: £9,116 GBP|Avg: £4,119 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 10, 2026
Retailer 4£2,830 GBP
Retailer 2£2,969 GBP
Retailer 9£3,039 GBP
Retailer 3£3,054 GBP
Retailer 5£3,217 GBP
Retailer 6£3,217 GBP
Retailer 7£3,217 GBP
Retailer 8£3,327 GBP
Aurelinne£3,712 GBP
Retailer 10£9,089 GBP

4 data points across 10 retailers

7 retailers£2,830 GBP to £3,712 GBP

B+
Cheapest Retailer
-
£2,830 GBP
B+
Retailer 2
-
£2,969 GBP
View
Final sale: no returns
B+
Retailer 3
-
£3,054 GBP
View
B+
Retailer 4
-
£3,217 GBP
View
B+
Retailer 5
-
£3,217 GBP
View
B+
Retailer 6
-
£3,327 GBP
View
Most Expensive
B
Aurelinne
61ed02eb-50c8-4b67-9701-245f2887d7df · Nov 5
£3,712 GBP
$4,996 USD
View
6 more retailers have this diamond
Prices start from £2,830 GBPSave up to £882 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+
1.55ct Round
£2,830 GBP