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Round|Natural|IGI

1.60ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 739588096

Shape and cutting style on the report: Round brilliant

Certificate IGI 739588096

Diamond specifications and retailer prices

From £883 GBP
As of November 5, 2026
Save £1,773 GBP (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,655 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 739588096. Listed at 11 retailers as of November 5, 2026, with prices from £883 to £2,655, a £1,773 spread on the same certified stone. NZ Jewellers lists it at £2,655. 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 angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 739588096
Dimensions7.38 × 7.41 × 4.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.38 mm7.41 mm1.60 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 739588096
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 63.4%

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: £2,655 GBP|Low: £883 GBP|High: £2,655 GBP|Avg: £1,283 GBP
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 4£883 GBP
Retailer 7£1,009 GBP
Retailer 3£1,088 GBP
Retailer 10£1,088 GBP
Retailer 8£1,139 GBP
Retailer 6£1,159 GBP
Retailer 2£1,185 GBP
Retailer 9£1,190 GBP
Retailer 11£1,256 GBP
Retailer 5£1,328 GBP
NZ Jewellers£2,655 GBP

46 data points across 11 retailers

11 retailers£883 GBP to £2,655 GBP

A
Cheapest Retailer
-
£883 GBP
A
Retailer 2
-
£1,009 GBP
View
A
Retailer 3
-
£1,088 GBP
View
Retailer 4
-
£1,088 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,139 GBP
View
A
Retailer 6
-
£1,159 GBP
View
A
Retailer 7
-
£1,185 GBP
View
A
Retailer 8
-
£1,190 GBP
View
A
Retailer 9
-
£1,256 GBP
View
A
Retailer 10
-
£1,328 GBP
View
Most Expensive
B
NZ Jewellers
93e3d0d6-b996-4116-a3fb-3a2474145615 · Nov 5
£2,655 GBP
$3,574 USD
View
10 more retailers have this diamond
Prices start from £883 GBPSave up to £1,773 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
£883 GBP