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1.73ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 642437475

Shape and cutting style on the report: Round brilliant

Certificate IGI 642437475

Diamond specifications and retailer prices

From £799 GBP
As of November 5, 2026
Save £541 GBP (40%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,340 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.73ct natural round diamond

This 1.73ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 642437475. Listed at 2 retailers as of November 5, 2026, with prices from £799 to £1,340, a £541 spread on the same certified stone. Yorxs lists it at £1,340. 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

1.73
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 642437475
Dimensions7.60 × 7.63 × 4.83 mm
L/W Ratio1.00
Culet sizePointed
Top View
7.60 mm7.63 mm1.73 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642437475
Side View
Table 57.0%Crown 36.3°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £799 GBP|Low: £799 GBP|High: £1,556 GBP|Avg: £1,187 GBP|-16.1%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£799 GBP
Retailer 2£1,210 GBP
Yorxs£1,340 GBP

45 data points across 3 retailers

2 retailers£799 GBP to £1,340 GBP

A
Cheapest Retailer
-
£799 GBP
Most Expensive
B+
Yorxs
MF1142 · Nov 6
£1,340 GBP
€1,718 EUR
View
1 more retailer has this diamond
Prices start from £799 GBPSave up to £541 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
1.73ct Round
£799 GBP