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1.60ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 782676621

Shape and cutting style on the report: Round brilliant

Certificate IGI 782676621

Diamond specifications and retailer prices

From £1,678 GBP
As of November 5, 2026
Save £2,909 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,586 GBP at NZ Jewellers · As of November 2, 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 782676621. Listed at 12 retailers as of November 2, 2026, with prices from £1,678 to £4,586, a £2,909 spread on the same certified stone. NZ Jewellers lists it at £4,586. 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 angle36.1°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 782676621
Dimensions7.40 × 7.45 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.40 mm7.45 mm1.60 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 782676621
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,586 GBP|Low: £1,397 GBP|High: £4,586 GBP|Avg: £2,157 GBP|+15.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2£1,678 GBP
Retailer 5£1,883 GBP
Retailer 4£2,025 GBP
Retailer 7£2,062 GBP
Retailer 12£2,144 GBP
Retailer 3£2,194 GBP
Retailer 9£2,194 GBP
Retailer 10£2,278 GBP
Retailer 6£2,404 GBP
Retailer 11£2,531 GBP
Retailer 8£2,696 GBP
NZ Jewellers£4,586 GBP

45 data points across 12 retailers

12 retailers£1,678 GBP to £4,586 GBP

B+
Cheapest Retailer
-
£1,678 GBP
B+
Retailer 2
-
£1,883 GBP
View
B+
Retailer 3
-
£2,025 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,062 GBP
View
B+
Retailer 5
-
£2,144 GBP
View
Retailer 6
-
£2,194 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,194 GBP
View
B+
Retailer 8
-
£2,278 GBP
View
B+
Retailer 9
-
£2,404 GBP
View
B+
Retailer 10
-
£2,531 GBP
View
B
Retailer 11
-
£2,696 GBP
View
Most Expensive
C
NZ Jewellers
eed966cc-2b24-43f8-8c3a-e872733a0a84 · Nov 2
£4,586 GBP
$6,173 USD
View
11 more retailers have this diamond
Prices start from £1,678 GBPSave up to £2,909 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.

B+
1.60ct Round
£1,678 GBP