Emerald|Lab Grown|IGI

0.51ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG758555865

Shape and cutting style on the report: Emerald cut

Certificate IGI LG758555865

Diamond specifications and retailer prices

From €107 EUR
$120 USD
As of October 29, 2026
Save €371 EUR (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,109 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG758555865 or 758555865. Listed at 14 retailers as of October 29, 2026, with a 345% 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

0.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758555865
Dimensions5.34 × 3.71 × 2.63 mm
L/W Ratio1.44
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.34 mm3.71 mm0.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG758555865
Side View
Table 64.0%Crown 37.5°Girdle: ThickPavilion 40.7°Culet: LargeDepth 70.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €1,109 EUR|Low: €103 EUR|High: €1,122 EUR|Avg: €314 EUR
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
November 1, 2026
Retailer 10€107 EUR
Retailer 4€124 EUR
Retailer 3€141 EUR
Retailer 12€141 EUR
Retailer 11€188 EUR
Retailer 8€192 EUR
Retailer 6€224 EUR
Retailer 7€240 EUR
Retailer 2€273 EUR
Retailer 5€405 EUR
Retailer 13€427 EUR
Retailer 9€476 EUR
MOH London€1,109 EUR

45 data points across 13 retailers

14 retailers€107 EUR to €478 EUR

A
Cheapest Retailer
-
€107 EUR
$120 USD
A
Retailer 2
-
€124 EUR
$139 USD
View
B+
Retailer 3
-
€141 EUR
$158 USD
View
Retailer 4
-
€141 EUR
$158 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€188 EUR
$210 USD
View
B+
Retailer 6
-
€224 EUR
$250 USD
View
B+
Retailer 7
-
€240 EUR
View
B
Retailer 8
-
€273 EUR
£240 GBP
View
B
Retailer 9
-
€373 EUR
SGD 563 SGD
View
B
Retailer 10
-
€405 EUR
$452 USD
View
B
Retailer 11
-
€427 EUR
$477 USD
View
B
Retailer 12
-
€476 EUR
$532 USD
View
B
Retailer 13
-
€478 EUR
$534 USD
View
Most Expensive
MOH London
LG758555865 · Nov 1
€1,109 EUR
£976 GBP
View
Price under review
13 more retailers have this diamond
Prices start from €107 EURSave up to €371 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.

A
0.51ct Emerald
€107 EUR