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1.60ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 654416799

Shape and cutting style on the report: Round brilliant

Certificate IGI 654416799

Diamond specifications and retailer prices

From £1,573 GBP
As of November 5, 2026
Save £2,067 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,640 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 654416799. Listed at 11 retailers as of November 5, 2026, with prices from £1,573 to £3,640, a £2,067 spread on the same certified stone. NZ Jewellers lists it at £3,640. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 654416799
Dimensions7.44 × 7.49 × 4.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.44 mm7.49 mm1.60 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 654416799
Side View
Table 56.0%Crown 36.2°Girdle: MediumPavilion 41°Culet: NoneDepth 62.7%

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: £3,640 GBP|Low: £1,573 GBP|High: £3,950 GBP|Avg: £2,075 GBP|-7.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£1,573 GBP
Retailer 3£1,652 GBP
Retailer 8£1,739 GBP
Retailer 10£1,741 GBP
Retailer 11£1,771 GBP
Retailer 6£1,821 GBP
Retailer 2£1,895 GBP
Retailer 7£2,009 GBP
Retailer 4£2,125 GBP
Retailer 5£2,160 GBP
NZ Jewellers£3,640 GBP

40 data points across 11 retailers

11 retailers£1,573 GBP to £3,640 GBP

A
Cheapest Retailer
-
£1,573 GBP
A
Retailer 2
-
£1,652 GBP
View
A
Retailer 3
-
£1,739 GBP
View
A
Retailer 4
-
£1,741 GBP
View
Retailer 5
-
£1,771 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£1,821 GBP
View
A
Retailer 7
-
£1,895 GBP
View
A
Retailer 8
-
£2,009 GBP
View
B+
Retailer 9
-
£2,125 GBP
View
B+
Retailer 10
-
£2,160 GBP
View
Most Expensive
B
NZ Jewellers
fa1e2c31-0005-4cfb-a6f0-f7cd5738c952 · Nov 5
£3,640 GBP
$4,899 USD
View
10 more retailers have this diamond
Prices start from £1,573 GBPSave up to £2,067 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
£1,573 GBP