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1.73ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 671480384

Shape and cutting style on the report: Round brilliant

Certificate IGI 671480384

Diamond specifications and retailer prices

From £941 GBP
As of November 5, 2026
Save £1,903 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,843 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 671480384. Listed at 9 retailers as of November 5, 2026, with prices from £941 to £2,843, a £1,903 spread on the same certified stone. NZ Jewellers lists it at £2,843. 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 angle36.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 671480384
Dimensions7.61 × 7.64 × 4.78 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.61 mm7.64 mm1.73 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671480384
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: £2,843 GBP|Low: £941 GBP|High: £2,843 GBP|Avg: £1,398 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3£941 GBP
Retailer 4£1,080 GBP
Retailer 7£1,166 GBP
Retailer 9£1,166 GBP
Retailer 5£1,219 GBP
Retailer 6£1,267 GBP
Retailer 8£1,345 GBP
Retailer 2£1,461 GBP
NZ Jewellers£2,843 GBP

46 data points across 9 retailers

9 retailers£941 GBP to £2,843 GBP

A
Cheapest Retailer
-
£941 GBP
A
Retailer 2
-
£1,080 GBP
View
B+
Retailer 3
-
£1,166 GBP
View
Retailer 4
-
£1,166 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£1,219 GBP
View
B+
Retailer 6
-
£1,267 GBP
View
B+
Retailer 7
-
£1,345 GBP
View
A
Retailer 8
-
£1,461 GBP
View
Most Expensive
B
NZ Jewellers
ffc8b446-e45a-4485-a588-c4325c013cb7 · Nov 5
£2,843 GBP
$3,827 USD
View
8 more retailers have this diamond
Prices start from £941 GBPSave up to £1,903 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
£941 GBP