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Round|Natural|IGI

1.60ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 648418561

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418561

Diamond specifications and retailer prices

From £1,328 GBP
As of November 5, 2026
Save £2,552 GBP (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,881 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 648418561. Listed at 11 retailers as of November 5, 2026, with prices from £1,328 to £3,881, a £2,552 spread on the same certified stone. NZ Jewellers lists it at £3,881. 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
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 648418561
Dimensions7.47 × 7.51 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.47 mm7.51 mm1.60 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 648418561
Side View
Table 57.0%Crown 35.5°GirdlePavilion 40.9°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £2,327 GBP|Low: £1,328 GBP|High: £2,372 GBP|Avg: £1,835 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3£1,328 GBP
Retailer 5£1,676 GBP
Retailer 4£1,707 GBP
Retailer 6£1,941 GBP
Retailer 2£2,032 GBP
Retailer 1£2,327 GBP

40 data points across 6 retailers

11 retailers£1,328 GBP to £3,881 GBP

A
Cheapest Retailer
-
£1,328 GBP
B+
Retailer 2
-
£1,676 GBP
View
B+
Retailer 3
-
£1,707 GBP
View
B+
Retailer 4
-
£1,856 GBP
View
Retailer 5
-
£1,856 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,941 GBP
View
B+
Retailer 7
-
£1,960 GBP
View
B+
Retailer 8
-
£2,032 GBP
View
B+
Retailer 9
-
£2,142 GBP
View
B+
Retailer 10
-
£2,327 GBP
View
Most Expensive
C
NZ Jewellers
99a70682-dff0-4a3c-9664-41d58f89b5dc · Nov 5
£3,881 GBP
$5,223 USD
View
10 more retailers have this diamond
Prices start from £1,328 GBPSave up to £2,552 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
£1,328 GBP