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Round|Lab Grown|IGI

1.72ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG595365160

Shape and cutting style on the report: Round brilliant

Certificate IGI LG595365160

Diamond specifications and retailer prices

From £134 GBP
$178 USD
As of October 29, 2026
Save £858 GBP (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £991 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG595365160 or 595365160. Listed at 8 retailers as of October 29, 2026, with prices from £134 to £991, a £858 spread on the same certified stone. Brilliant Earth lists it at £991. 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

1.72
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595365160
Dimensions7.72 × 7.77 × 4.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.72 mm7.77 mm1.72 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595365160
Side View
Table 59.0%Crown 33.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.1%

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: Oct 29
Current: £991 GBP|Low: £134 GBP|High: £1,021 GBP|Avg: £497 GBP|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 5£134 GBP
Retailer 3£155 GBP
Retailer 8£159 GBP
Retailer 7£295 GBP
Retailer 10£371 GBP
Retailer 9£453 GBP
Retailer 4£564 GBP
Retailer 6£589 GBP
Retailer 2£858 GBP
Brilliant Earth£991 GBP

17 data points across 10 retailers

8 retailers£134 GBP to £991 GBP

A
Cheapest Retailer
-
£134 GBP
$178 USD
A
Retailer 2
-
£155 GBP
$207 USD
View
A
Retailer 3
-
£159 GBP
$212 USD
View
Final sale: no returns
B+
Retailer 4
-
£295 GBP
$393 USD
View
B
Retailer 5
-
£564 GBP
$751 USD
View
B+
Retailer 6
-
£589 GBP
$785 USD
View
B
Retailer 7
-
£858 GBP
View
Most Expensive
B
Brilliant Earth
7923075Y · Oct 29
£991 GBP
$1,320 USD
View
7 more retailers have this diamond
Prices start from £134 GBPSave up to £858 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
1.72ct Round
£134 GBP