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1.56ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 547273925

Shape and cutting style on the report: Round brilliant

Certificate IGI 547273925

Diamond specifications and retailer prices

From £771 GBP
As of November 6, 2026
Save £1,537 GBP (67%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,308 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.56ct natural round diamond

This 1.56ct 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 547273925. Listed at 10 retailers as of November 5, 2026, with prices from £771 to £2,308, a £1,537 spread on the same certified stone. NZ Jewellers lists it at £2,308. 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

1.56
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 547273925
Dimensions7.30 × 7.36 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.30 mm7.36 mm1.56 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 547273925
Side View
Table 57.5%Crown 36.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.2%

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: £2,308 GBP|Low: £771 GBP|High: £2,308 GBP|Avg: £1,112 GBP
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 6, 2026
Retailer 2£771 GBP
Retailer 7£906 GBP
Retailer 10£947 GBP
Retailer 12£947 GBP
Retailer 9£983 GBP
Retailer 4£1,025 GBP
Retailer 6£1,033 GBP
Retailer 3£1,046 GBP
Retailer 8£1,048 GBP
Retailer 11£1,092 GBP
Retailer 5£1,155 GBP
NZ Jewellers£2,308 GBP

45 data points across 12 retailers

10 retailers£771 GBP to £2,308 GBP

A
Cheapest Retailer
-
£771 GBP
A
Retailer 2
-
£906 GBP
View
A
Retailer 3
-
£947 GBP
View
Retailer 4
-
£947 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£983 GBP
View
A
Retailer 6
-
£1,033 GBP
View
A
Retailer 7
-
£1,046 GBP
View
A
Retailer 8
-
£1,092 GBP
View
A
Retailer 9
-
£1,155 GBP
View
Most Expensive
B+
NZ Jewellers
6630391d-cc65-40de-a46b-831a95c10364 · Nov 5
£2,308 GBP
$3,107 USD
View
9 more retailers have this diamond
Prices start from £771 GBPSave up to £1,537 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
1.56ct Round
£771 GBP