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Round|Natural|IGI

1.55ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 803636810

Shape and cutting style on the report: Round brilliant

Certificate IGI 803636810

Diamond specifications and retailer prices

From £3,353 GBP
As of November 4, 2026
Save £3,077 GBP (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,430 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 803636810. Listed at 19 retailers as of November 4, 2026, with prices from £3,353 to £6,430, a £3,077 spread on the same certified stone. NZ Jewellers lists it at £6,430. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 803636810
Dimensions7.38 × 7.43 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.38 mm7.43 mm1.55 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803636810
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,430 GBP|Low: £3,222 GBP|High: £6,430 GBP|Avg: £4,197 GBP
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
November 5, 2026
Retailer 6£3,353 GBP
Retailer 3£3,463 GBP
Retailer 13£3,548 GBP
Retailer 14£3,611 GBP
Retailer 7£3,817 GBP
Retailer 4£3,844 GBP
Retailer 12£3,844 GBP
Retailer 15£3,844 GBP
Retailer 9£3,848 GBP
Retailer 2£4,228 GBP
Retailer 8£4,317 GBP
Retailer 5£4,436 GBP
Retailer 11£4,726 GBP
Retailer 10£6,107 GBP
NZ Jewellers£6,430 GBP

43 data points across 15 retailers

19 retailers£3,353 GBP to £6,430 GBP

A
Cheapest Retailer
-
£3,353 GBP
A
Retailer 2
-
£3,463 GBP
View
A
Retailer 3
-
£3,548 GBP
View
Final sale: no returns
A
Retailer 4
-
£3,611 GBP
View
A
Retailer 5
-
£3,817 GBP
View
Retailer 6
-
£3,819 GBP
View
Price last confirmed 43 days ago
Retailer 7
-
£3,844 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
£3,844 GBP
View
Price last confirmed 20 days ago
Retailer 9
-
£3,844 GBP
View
Price last confirmed 7 days ago
A
Retailer 10
-
£3,848 GBP
View
A
Retailer 11
-
£4,228 GBP
View
A
Retailer 12
-
£4,317 GBP
View
Retailer 13
-
£4,407 GBP
View
Price last confirmed 44 days ago
Retailer 14
-
£4,436 GBP
View
Price last confirmed 9 days ago
A
Retailer 15
-
£4,726 GBP
View
B+
Retailer 16
-
£6,107 GBP
View
Retailer 17
-
£6,387 GBP
View
Price last confirmed 47 days ago
Retailer 18
-
£6,430 GBP
View
Price last confirmed 9 days ago
Most Expensive
B+
NZ Jewellers
28dfaec5-3c2d-4e51-99d0-cced59a93ebe · Nov 5
£6,430 GBP
$8,681 USD
View
18 more retailers have this diamond
Prices start from £3,353 GBPSave up to £3,077 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
1.55ct Round
£3,353 GBP