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Emerald|Lab Grown|IGI

1.73ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG512205087

Shape and cutting style on the report: Emerald cut

Certificate IGI LG512205087

Diamond specifications and retailer prices

From €1,217 EUR
$1,360 USD
As of October 31, 2026
Save €3,692 EUR (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,910 EUR at MOH London · As of October 29, 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 LG512205087 or 512205087. Listed at 12 retailers as of October 29, 2026, with prices from €1,217 to €4,910, a €3,692 spread on the same certified stone. MOH London lists it at €4,910. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.6°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512205087
Dimensions8.72 × 5.66 × 3.52 mm
L/W Ratio1.54
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
8.72 mm5.66 mm1.73 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512205087
Side View
Table 64.5%Crown 26.6°Girdle: THN-MEDPavilion 35.3°Culet: LNGDepth 62.2%

Caratlytics Score

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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: Oct 31
Current: €4,910 EUR|Low: €1,217 EUR|High: €4,948 EUR|Avg: €2,653 EUR|+0.5%
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
October 29, 2026
Retailer 8€1,217 EUR
Retailer 7€1,474 EUR
Retailer 13€1,604 EUR
Retailer 14€1,651 EUR
Retailer 9€1,710 EUR
Retailer 12€1,710 EUR
Retailer 3€1,862 EUR
Retailer 5€2,297 EUR
Retailer 10€2,687 EUR
Retailer 2€2,948 EUR
Retailer 11€3,205 EUR
Retailer 4€4,706 EUR
Retailer 6€4,896 EUR
MOH London€4,910 EUR

18 data points across 14 retailers

12 retailers€1,217 EUR to €4,910 EUR

B+
Cheapest Retailer
-
€1,217 EUR
$1,360 USD
B
Retailer 2
-
€1,474 EUR
$1,647 USD
View
B+
Retailer 3
-
€1,604 EUR
$1,792 USD
View
B
Retailer 4
-
€1,651 EUR
$1,844 USD
View
Final sale: no returns
B
Retailer 5
-
€1,710 EUR
$1,910 USD
View
Retailer 6
-
€1,710 EUR
$1,910 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
€1,862 EUR
$2,080 USD
View
B
Retailer 8
-
€2,687 EUR
$3,002 USD
View
B
Retailer 9
-
€2,948 EUR
$3,294 USD
View
B
Retailer 10
-
€3,205 EUR
$3,581 USD
View
B
Retailer 11
-
€4,706 EUR
$5,257 USD
View
Most Expensive
B
MOH London
LG512205087 · Oct 29
€4,910 EUR
£4,319 GBP
View
11 more retailers have this diamond
Prices start from €1,217 EURSave up to €3,692 EUR

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
€1,217 EUR