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Round|Natural|IGI

1.60ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 803629002

Shape and cutting style on the report: Round brilliant

Certificate IGI 803629002

Diamond specifications and retailer prices

From £1,719 GBP
As of November 6, 2026
Save £2,260 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,979 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803629002. Listed at 12 retailers as of November 5, 2026, with prices from £1,719 to £3,979, a £2,260 spread on the same certified stone. NZ Jewellers lists it at £3,979. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.60
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 803629002
Dimensions7.46 × 7.52 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.46 mm7.52 mm1.60 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629002
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.5%

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: £3,979 GBP|Low: £1,713 GBP|High: £4,207 GBP|Avg: £2,345 GBP|-5.4%
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 13£1,719 GBP
Retailer 11£1,858 GBP
Retailer 12£1,904 GBP
Retailer 4£1,962 GBP
Retailer 6£1,980 GBP
Retailer 9£1,991 GBP
Retailer 3£2,004 GBP
Retailer 7£2,164 GBP
Retailer 10£2,366 GBP
Retailer 5£2,394 GBP
Retailer 2£2,476 GBP
Retailer 8£3,326 GBP
NZ Jewellers£3,979 GBP

41 data points across 13 retailers

12 retailers£1,719 GBP to £3,979 GBP

A
Cheapest Retailer
-
£1,719 GBP
A
Retailer 2
-
£1,858 GBP
View
A
Retailer 3
-
£1,904 GBP
View
Retailer 4
-
£1,962 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,980 GBP
View
A
Retailer 6
-
£1,991 GBP
View
A
Retailer 7
-
£2,004 GBP
View
A
Retailer 8
-
£2,164 GBP
View
B+
Retailer 9
-
£2,366 GBP
View
A
Retailer 10
-
£2,476 GBP
View
B+
Retailer 11
-
£3,326 GBP
View
Most Expensive
B
NZ Jewellers
723c1512-1343-4772-9bcd-4106ee9d679e · Nov 5
£3,979 GBP
$5,356 USD
View
11 more retailers have this diamond
Prices start from £1,719 GBPSave up to £2,260 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
1.60ct Round
£1,719 GBP