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Emerald|Lab Grown|IGI

0.51ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG530293063

Shape and cutting style on the report: Emerald cut

Certificate IGI LG530293063

Diamond specifications and retailer prices

From £92 GBP
As of November 6, 2026
Save £296 GBP (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £956 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG530293063 or 530293063. Listed at 13 retailers as of November 4, 2026, with a 322% 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle24.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530293063
Dimensions5.34 × 3.89 × 2.45 mm
L/W Ratio1.37
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.34 mm3.89 mm0.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG530293063
Side View
Table 59.0%Crown 24.5°Girdle: MED-STKPavilion 38.6°Culet: LargeDepth 63.0%

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: £956 GBP|Low: £54 GBP|High: £967 GBP|Avg: £248 GBP|-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 6, 2026
Retailer 5£54 GBP
Retailer 8£92 GBP
Retailer 4£103 GBP
Retailer 13£107 GBP
Retailer 9£122 GBP
Retailer 12£122 GBP
Retailer 10£219 GBP
Retailer 2£236 GBP
Retailer 6£238 GBP
Retailer 3£284 GBP
Retailer 11£368 GBP
Retailer 7£389 GBP
MOH London£956 GBP

45 data points across 13 retailers

13 retailers£92 GBP to £389 GBP

A
Cheapest Retailer
-
£92 GBP
A
Retailer 2
-
£103 GBP
View
Final sale: no returns
A
Retailer 3
-
£107 GBP
View
A
Retailer 4
-
£122 GBP
View
Retailer 5
-
£122 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£219 GBP
View
B
Retailer 7
-
£236 GBP
View
B+
Retailer 8
-
£238 GBP
View
B+
Retailer 9
-
£247 GBP
View
B
Retailer 10
-
£284 GBP
View
B
Retailer 11
-
£368 GBP
View
B
Retailer 12
-
£389 GBP
View
Most Expensive
MOH London
LG530293063 · Nov 1
£956 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £92 GBPSave up to £296 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.

A
0.51ct Emerald
£92 GBP