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Emerald|Lab Grown|IGI

1.00ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG512205131

Shape and cutting style on the report: Emerald cut

Certificate IGI LG512205131

Diamond specifications and retailer prices

From €509 EUR
As of November 6, 2026
Save €2,225 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,734 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512205131 or 512205131. Listed at 11 retailers as of November 5, 2026, with prices from €509 to €2,734, a €2,225 spread on the same certified stone. MOH London lists it at €2,734. 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

1.00
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle20.9°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512205131
Dimensions6.94 × 4.59 × 3.11 mm
L/W Ratio1.51
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
6.94 mm4.59 mm1.00 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512205131
Side View
Table 68.5%Crown 20.9°Girdle: STK-THKPavilion 41.9°Culet: LNGDepth 67.8%

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: Nov 6
Current: €2,734 EUR|Low: €489 EUR|High: €2,773 EUR|Avg: €1,076 EUR|-0.2%
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 5, 2026
Retailer 8€509 EUR
Retailer 2€517 EUR
Retailer 3€570 EUR
Retailer 13€570 EUR
Retailer 9€632 EUR
Retailer 12€632 EUR
Retailer 6€748 EUR
Retailer 10€972 EUR
Retailer 4€1,004 EUR
Retailer 7€1,566 EUR
Retailer 11€1,661 EUR
Retailer 5€1,691 EUR
MOH London€2,734 EUR

23 data points across 13 retailers

11 retailers€509 EUR to €2,734 EUR

A
Cheapest Retailer
-
€509 EUR
A
Retailer 2
-
€517 EUR
View
A
Retailer 3
-
€570 EUR
View
Final sale: no returns
A
Retailer 4
-
€570 EUR
View
B+
Retailer 5
-
€632 EUR
View
Retailer 6
-
€632 EUR
View
Price last confirmed 21 days ago
A
Retailer 7
-
€748 EUR
View
B+
Retailer 8
-
€972 EUR
View
B
Retailer 9
-
€1,566 EUR
View
B
Retailer 10
-
€1,661 EUR
View
Most Expensive
B
MOH London
LG512205131 · Nov 5
€2,734 EUR
£2,416 GBP
View
10 more retailers have this diamond
Prices start from €509 EURSave up to €2,225 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
1.00ct Emerald
€509 EUR