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1.72ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG488143432

Shape and cutting style on the report: Round brilliant

Certificate IGI LG488143432

Diamond specifications and retailer prices

From £739 GBP
$990 USD
As of October 30, 2026
Save £3,008 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,747 GBP at MOH London · As of October 29, 2026
View at MOH London

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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488143432 or 488143432. Listed at 10 retailers as of October 29, 2026, with prices from £739 to £3,747, a £3,008 spread on the same certified stone. MOH London lists it at £3,747. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488143432
Dimensions7.61 × 7.57 × 4.78 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
7.61 mm7.57 mm1.72 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488143432
Side View
Table 59.5%Crown 36.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.9%

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: Oct 30
Current: £3,747 GBP|Low: £739 GBP|High: £3,777 GBP|Avg: £1,848 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2£739 GBP
Retailer 6£1,125 GBP
Retailer 9£1,224 GBP
Retailer 11£1,260 GBP
Retailer 7£1,305 GBP
Retailer 3£1,447 GBP
Retailer 12£1,771 GBP
Retailer 8£2,056 GBP
Retailer 5£2,308 GBP
Retailer 10£2,446 GBP
Retailer 4£2,922 GBP
MOH London£3,747 GBP

19 data points across 12 retailers

10 retailers£739 GBP to £3,747 GBP

A
Cheapest Retailer
-
£739 GBP
$990 USD
B+
Retailer 2
-
£1,125 GBP
$1,507 USD
View
B+
Retailer 3
-
£1,224 GBP
$1,640 USD
View
B+
Retailer 4
-
£1,260 GBP
$1,688 USD
View
Final sale: no returns
Retailer 5
-
£1,305 GBP
$1,749 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,305 GBP
$1,749 USD
View
B
Retailer 7
-
£2,056 GBP
$2,755 USD
View
B
Retailer 8
-
£2,308 GBP
$3,092 USD
View
B
Retailer 9
-
£2,446 GBP
$3,278 USD
View
Most Expensive
B
MOH London
LG488143432 · Oct 29
£3,747 GBP
View
9 more retailers have this diamond
Prices start from £739 GBPSave up to £3,008 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
£739 GBP