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Emerald|Lab Grown|IGI

0.51ct D VS1 Emerald Lab Grown Diamond

VG • D/VS1 • IGI LG825686663

Shape and cutting style on the report: Emerald cut

Certificate IGI LG825686663

Diamond specifications and retailer prices

From £252 GBP
As of October 23, 2026
17 retailers carry this diamond
Most expensive: £828 GBP at MOH London · As of October 19, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG825686663 or 825686663. Listed at 17 retailers as of October 23, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle46.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825686663
Dimensions5.10 × 3.71 × 2.79 mm
L/W Ratio1.37
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.10 mm3.71 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825686663
Side View
Table 66.0%Crown 35.5°Girdle: MediumPavilion 46.8°Culet: LargeDepth 75.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: £828 GBP|Low: £62 GBP|High: £833 GBP|Avg: £275 GBP|+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
Retailer 15
Retailer 16
October 21, 2026
Retailer 14£80 GBP
Retailer 3£89 GBP
Retailer 16£93 GBP
Retailer 15£105 GBP
Retailer 6£137 GBP
Retailer 11£166 GBP
Retailer 5£175 GBP
Retailer 10£186 GBP
Retailer 12£193 GBP
Retailer 9£228 GBP
Retailer 13£252 GBP
Retailer 7£287 GBP
Retailer 2£309 GBP
Retailer 4£516 GBP
Retailer 8£672 GBP
MOH London£828 GBP

33 data points across 16 retailers

17 retailers

A
Retailer 1
-
£80 GBP
$106 USD
Price last confirmed 10 days ago
A
Retailer 2
-
£93 GBP
$123 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£105 GBP
$140 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
£116 GBP
HK$1,200 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£137 GBP
$182 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
£166 GBP
$220 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£175 GBP
$233 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£186 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£193 GBP
€244 EUR
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£228 GBP
$303 USD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£252 GBP
View
B
Retailer 12
-
£277 GBP
SGD 497 SGD
View
Price last confirmed 10 days ago
B
Retailer 13
-
£309 GBP
$410 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
£361 GBP
$480 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
£516 GBP
View
Price last confirmed 16 days ago
B
Retailer 16
-
£672 GBP
$893 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG825686663 · Oct 19
£828 GBP
View
Price under review
16 more retailers have this diamond
Prices start from £252 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
£252 GBP