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Emerald|Lab Grown|IGI

0.51ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG499189055

Shape and cutting style on the report: Emerald cut

Certificate IGI LG499189055

Diamond specifications and retailer prices

From £238 GBP
$320 USD
As of October 31, 2026
Save £375 GBP (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,324 GBP 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG499189055 or 499189055. Listed at 15 retailers as of October 28, 2026, with a 157% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle22.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189055
Dimensions5.65 × 3.69 × 2.48 mm
L/W Ratio1.53
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
5.65 mm3.69 mm0.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189055
Side View
Table 65.0%Crown 22.9°Girdle: MediumPavilion 40.3°Culet: LNGDepth 67.2%

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 31
Current: £1,324 GBP|Low: £238 GBP|High: £1,340 GBP|Avg: £557 GBP
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£238 GBP
Retailer 9£273 GBP
Retailer 5£306 GBP
Retailer 4£317 GBP
Retailer 3£339 GBP
Retailer 11£339 GBP
Retailer 12£541 GBP
Retailer 6£606 GBP
Retailer 2£612 GBP
Retailer 7£613 GBP
Retailer 8£994 GBP
Retailer 13£1,089 GBP
MOH London£1,324 GBP

44 data points across 13 retailers

15 retailers£238 GBP to £613 GBP

B+
Cheapest Retailer
-
£238 GBP
$320 USD
B+
Retailer 2
-
£273 GBP
$367 USD
View
B+
Retailer 3
-
£306 GBP
$410 USD
View
Final sale: no returns
B+
Retailer 4
-
£317 GBP
$425 USD
View
Retailer 5
-
£339 GBP
$455 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
£339 GBP
$455 USD
View
B
Retailer 7
-
£541 GBP
$726 USD
View
B
Retailer 8
-
£606 GBP
€774 EUR
View
B
Retailer 9
-
£612 GBP
View
B
Retailer 10
-
£613 GBP
ZAR 13,289 ZAR
View
Retailer 11
-
£994 GBP
$1,334 USD
View
Price under review
Retailer 12
-
£1,089 GBP
$1,462 USD
View
Price under review
Retailer 13
-
£1,200 GBP
$1,610 USD
View
Price under review
Retailer 14
-
£1,317 GBP
View
Price under review
Most Expensive
MOH London
LG499189055 · Nov 1
£1,324 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £238 GBPSave up to £375 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+
0.51ct Emerald
£238 GBP