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Round|Lab Grown|IGI

1.72ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG787619767

Shape and cutting style on the report: Round brilliant

Certificate IGI LG787619767

Diamond specifications and retailer prices

From £204 GBP
$274 USD
As of November 1, 2026
Save £796 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,001 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG787619767 or 787619767. Listed at 10 retailers as of November 1, 2026, with prices from £204 to £1,001, a £796 spread on the same certified stone. Reve Diamonds lists it at £1,001. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787619767
Dimensions7.65 × 7.64 × 4.82 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.65 mm7.64 mm1.72 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787619767
Side View
Table 53.0%Crown 34.7°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 63.0%

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 1
Current: £365 GBP|Low: £204 GBP|High: £1,001 GBP|Avg: £553 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
November 2, 2026
Retailer 6£204 GBP
Retailer 1£365 GBP
Retailer 7£383 GBP
Retailer 8£406 GBP
Retailer 2£418 GBP
Retailer 3£432 GBP
Retailer 5£735 GBP
Retailer 9£771 GBP
Retailer 4£913 GBP
Reve Diamonds£1,001 GBP

39 data points across 10 retailers

10 retailers£204 GBP to £1,001 GBP

A
Cheapest Retailer
-
£204 GBP
$274 USD
Final sale: no returns
A
Retailer 2
-
£365 GBP
€466 EUR
View
B+
Retailer 3
-
£383 GBP
$513 USD
View
B+
Retailer 4
-
£406 GBP
$544 USD
View
A
Retailer 5
-
£418 GBP
View
B+
Retailer 6
-
£432 GBP
View
B
Retailer 7
-
£735 GBP
$985 USD
View
B
Retailer 8
-
£771 GBP
$1,033 USD
View
B
Retailer 9
-
£913 GBP
View
Most Expensive
B
Reve Diamonds
E2924E166 · Nov 1
£1,001 GBP
$1,341 USD
View
9 more retailers have this diamond
Prices start from £204 GBPSave up to £796 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
£204 GBP