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1.55ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 524251595

Shape and cutting style on the report: Round brilliant

Certificate IGI 524251595

Diamond specifications and retailer prices

From £1,319 GBP
As of November 6, 2026
Save £803 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,122 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 1.55ct natural round diamond

This 1.55ct 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 524251595. Listed at 3 retailers as of November 5, 2026, with prices from £1,319 to £2,122, a £803 spread on the same certified stone. Yorxs lists it at £2,122. 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

1.55
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle33.4°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 524251595
Dimensions7.40 × 7.46 × 4.53 mm
L/W Ratio1.01
Culet sizePointed
Top View
7.40 mm7.46 mm1.55 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateIGI 524251595
Side View
Table 61.5%Crown 33.4°Girdle: MediumPavilion 41.5°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,319 GBP|Low: £1,319 GBP|High: £2,139 GBP|Avg: £1,742 GBP|-8.1%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£1,319 GBP
Retailer 2£1,681 GBP
Yorxs£2,122 GBP

46 data points across 3 retailers

3 retailers£1,319 GBP to £2,122 GBP

A
Cheapest Retailer
-
£1,319 GBP
B+
Retailer 2
-
£1,681 GBP
View
Most Expensive
B+
Yorxs
EB7399071 · Nov 5
£2,122 GBP
€2,720 EUR
View
2 more retailers have this diamond
Prices start from £1,319 GBPSave up to £803 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
1.55ct Round
£1,319 GBP