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Emerald|Lab Grown|IGI

1.72ct G SI2 Emerald Lab Grown Diamond

ID • G/SI2 • IGI LG512231544

Shape and cutting style on the report: Emerald cut

Certificate IGI LG512231544

Diamond specifications and retailer prices

From £806 GBP
$1,080 USD
As of October 30, 2026
Save £1,599 GBP (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,668 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.72ct lab-grown emerald diamond

This 1.72ct lab-grown emerald 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 LG512231544 or 512231544. Listed at 11 retailers as of October 28, 2026, with a 198% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle18.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512231544
Dimensions8.09 × 5.94 × 3.72 mm
L/W Ratio1.36
Culet sizeLong
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
8.09 mm5.94 mm1.72 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512231544
Side View
Table 67.5%Crown 18.9°Girdle: MediumPavilion 37.4°Culet: LNGDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,668 GBP|Low: £806 GBP|High: £3,713 GBP|Avg: £1,703 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£806 GBP
Retailer 4£1,106 GBP
Retailer 9£1,203 GBP
Retailer 10£1,238 GBP
Retailer 5£1,283 GBP
Retailer 8£1,283 GBP
Retailer 2£1,796 GBP
Retailer 6£2,021 GBP
Retailer 7£2,405 GBP
MOH London£3,668 GBP

44 data points across 10 retailers

11 retailers£806 GBP to £2,405 GBP

B+
Cheapest Retailer
-
£806 GBP
$1,080 USD
B
Retailer 2
-
£1,106 GBP
$1,482 USD
View
B
Retailer 3
-
£1,203 GBP
$1,612 USD
View
B
Retailer 4
-
£1,238 GBP
$1,659 USD
View
Final sale: no returns
B
Retailer 5
-
£1,283 GBP
$1,719 USD
View
Retailer 6
-
£1,283 GBP
$1,719 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,796 GBP
View
B
Retailer 8
-
£2,021 GBP
$2,708 USD
View
B
Retailer 9
-
£2,328 GBP
$3,119 USD
View
B
Retailer 10
-
£2,405 GBP
$3,222 USD
View
Most Expensive
MOH London
LG512231544 · Oct 27
£3,668 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £806 GBPSave up to £1,599 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.

B+
1.72ct Emerald
£806 GBP