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Emerald|Lab Grown|IGI

1.73ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG508156151

Shape and cutting style on the report: Emerald cut

Certificate IGI LG508156151

Diamond specifications and retailer prices

From $1,943 AUD
As of November 4, 2026
Save $5,851 AUD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,794 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.73ct lab-grown emerald diamond

This 1.73ct lab-grown emerald sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508156151 or 508156151. Listed at 11 retailers as of November 3, 2026, with prices from $1,943 to $7,794, a $5,851 spread on the same certified stone. MOH London lists it at $7,794. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle17.5°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156151
Dimensions8.21 × 5.87 × 3.66 mm
L/W Ratio1.40
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
8.21 mm5.87 mm1.73 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156151
Side View
Table 65.5%Crown 17.5°Girdle: MED-STKPavilion 35°Culet: LNGDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $7,794 AUD|Low: $1,943 AUD|High: $7,897 AUD|Avg: $3,891 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8$1,943 AUD
Retailer 7$2,353 AUD
Retailer 13$2,560 AUD
Retailer 14$2,634 AUD
Retailer 9$2,728 AUD
Retailer 12$2,728 AUD
Retailer 3$2,971 AUD
Retailer 6$2,983 AUD
Retailer 4$3,666 AUD
Retailer 10$4,288 AUD
Retailer 2$4,705 AUD
Retailer 11$5,115 AUD
MOH London$7,794 AUD
Retailer 5$7,812 AUD

16 data points across 14 retailers

11 retailers$1,943 AUD to $7,794 AUD

B+
Cheapest Retailer
-
$1,943 AUD
B+
Retailer 2
-
$2,353 AUD
View
B
Retailer 3
-
$2,560 AUD
View
B
Retailer 4
-
$2,634 AUD
View
Final sale: no returns
B
Retailer 5
-
$2,728 AUD
View
Retailer 6
-
$2,728 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,971 AUD
View
B
Retailer 8
-
$4,288 AUD
View
B
Retailer 9
-
$4,705 AUD
View
B
Retailer 10
-
$5,115 AUD
View
Most Expensive
B
MOH London
LG508156151 · Nov 3
$7,794 AUD
£4,296 GBP
View
10 more retailers have this diamond
Prices start from $1,943 AUDSave up to $5,851 AUD

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+
1.73ct Emerald
$1,943 AUD