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Round|Natural|IGI

1.55ct K IF Round Natural Diamond

EX • K/IF • IGI 620410438

Shape and cutting style on the report: Round brilliant

Certificate IGI 620410438

Diamond specifications and retailer prices

From £3,297 GBP
As of November 5, 2026
Save £3,027 GBP (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,324 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 620410438. Listed at 14 retailers as of November 5, 2026, with prices from £3,297 to £6,324, a £3,027 spread on the same certified stone. NZ Jewellers lists it at £6,324. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 620410438
Dimensions7.39 × 7.35 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.35 mm1.55 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 620410438
Side View
Table 57.0%Crown 34.9°Girdle: Med.Pavilion 41.3°Culet: NoneDepth 63.0%

Caratlytics Score

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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 5
Current: £6,324 GBP|Low: £3,349 GBP|High: £6,324 GBP|Avg: £4,251 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
November 6, 2026
Retailer 4£3,349 GBP
Retailer 2£3,493 GBP
Retailer 5£3,555 GBP
Retailer 6£3,748 GBP
Retailer 3£3,781 GBP
Retailer 12£3,781 GBP
Retailer 13£3,781 GBP
Retailer 8£4,156 GBP
Retailer 9£4,251 GBP
Retailer 11£4,362 GBP
Retailer 7£4,612 GBP
Retailer 10£6,006 GBP
NZ Jewellers£6,324 GBP

27 data points across 13 retailers

14 retailers£3,297 GBP to £6,324 GBP

A
Cheapest Retailer
-
£3,297 GBP
A
Retailer 2
-
£3,493 GBP
View
A
Retailer 3
-
£3,555 GBP
View
A
Retailer 4
-
£3,748 GBP
View
A
Retailer 5
-
£3,781 GBP
View
Retailer 6
-
£3,781 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
£3,781 GBP
View
A
Retailer 8
-
£3,893 GBP
View
A
Retailer 9
-
£4,156 GBP
View
A
Retailer 10
-
£4,251 GBP
View
B+
Retailer 11
-
£4,362 GBP
View
B+
Retailer 12
-
£4,612 GBP
View
B
Retailer 13
-
£6,006 GBP
View
Most Expensive
B
NZ Jewellers
6f1df928-a700-43fa-88c2-d7f65a5de212 · Nov 5
£6,324 GBP
$8,511 USD
View
13 more retailers have this diamond
Prices start from £3,297 GBPSave up to £3,027 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
£3,297 GBP