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Round|Natural|IGI

1.60ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 572330913

Shape and cutting style on the report: Round brilliant

Certificate IGI 572330913

Diamond specifications and retailer prices

From £1,709 GBP
As of November 6, 2026
Save £1,624 GBP (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,121 GBP at NZ Jewellers · As of September 25, 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 572330913. Listed at 14 retailers as of November 4, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.1°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 572330913
Dimensions7.62 × 7.59 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.62 mm7.59 mm1.60 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 572330913
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.5%

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 6
Current: £2,518 GBP|Low: £1,709 GBP|High: £3,494 GBP|Avg: £2,197 GBP|-4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12£1,709 GBP
Retailer 7£1,735 GBP
Retailer 2£1,798 GBP
Retailer 9£1,908 GBP
Retailer 11£1,908 GBP
Retailer 10£1,996 GBP
Retailer 8£2,012 GBP
Retailer 3£2,201 GBP
Retailer 4£2,345 GBP
Retailer 5£2,366 GBP
Retailer 1£2,518 GBP
Retailer 6£3,333 GBP

30 data points across 12 retailers

14 retailers£1,709 GBP to £3,333 GBP

A
Cheapest Retailer
-
£1,709 GBP
A
Retailer 2
-
£1,735 GBP
View
A
Retailer 3
-
£1,798 GBP
View
A
Retailer 4
-
£1,908 GBP
View
Retailer 5
-
£1,908 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£1,971 GBP
View
Price last confirmed 42 days ago
A
Retailer 7
-
£1,996 GBP
View
A
Retailer 8
-
£2,012 GBP
View
A
Retailer 9
-
£2,201 GBP
View
Retailer 10
-
£2,274 GBP
View
Price last confirmed 45 days ago
A
Retailer 11
-
£2,366 GBP
View
A
Retailer 12
-
£2,518 GBP
View
B+
Retailer 13
-
£3,333 GBP
View
Most Expensive
NZ Jewellers
94bafca9-eb32-4367-82f1-4883e889e0c6 · Sep 25
£4,121 GBP
$5,546 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from £1,709 GBPSave up to £1,624 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
£1,709 GBP