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Round|Natural|IGI

1.55ct K IF Round Natural Diamond

EX • K/IF • IGI 607317049

Shape and cutting style on the report: Round brilliant

Certificate IGI 607317049

Diamond specifications and retailer prices

From £2,685 GBP
As of November 6, 2026
Save £2,320 GBP (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,317 GBP at NZ Jewellers · As of October 20, 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 607317049. Listed at 12 retailers as of November 2, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle36.2°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 607317049
Dimensions7.37 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.31 mm1.55 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 607317049
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 6
Current: £5,317 GBP|Low: £2,685 GBP|High: £5,317 GBP|Avg: £3,711 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£2,685 GBP
Retailer 7£2,905 GBP
Retailer 2£3,050 GBP
Retailer 9£3,051 GBP
Retailer 4£3,361 GBP
Retailer 8£3,521 GBP
Retailer 3£3,653 GBP
Retailer 6£4,525 GBP
Retailer 5£5,005 GBP
NZ Jewellers£5,317 GBP

43 data points across 10 retailers

12 retailers£2,685 GBP to £5,005 GBP

A
Cheapest Retailer
-
£2,685 GBP
A
Retailer 2
-
£2,905 GBP
View
Retailer 3
-
£2,993 GBP
View
Price last confirmed 21 days ago
A
Retailer 4
-
£3,050 GBP
View
Retailer 5
-
£3,051 GBP
View
Price last confirmed 17 days ago
Retailer 6
-
£3,051 GBP
View
Price last confirmed 22 days ago
A
Retailer 7
-
£3,361 GBP
View
Retailer 8
-
£3,521 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
-
£3,653 GBP
View
B+
Retailer 10
-
£4,525 GBP
View
B+
Retailer 11
-
£5,005 GBP
View
Most Expensive
NZ Jewellers
93623be4-9f28-4fd8-b017-2f729984efc0 · Oct 20
£5,317 GBP
$7,156 USD
View
Price last confirmed 16 days ago
11 more retailers have this diamond
Prices start from £2,685 GBPSave up to £2,320 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
£2,685 GBP