CaratHunter
Plans
Emerald|Lab Grown|IGI

0.51ct E VS1 Emerald Lab Grown Diamond

ID • E/VS1 • IGI LG787649830

Shape and cutting style on the report: Emerald cut

Certificate IGI LG787649830

Diamond specifications and retailer prices

From £84 GBP
$111 USD
As of October 27, 2026
Save £604 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £955 GBP at MOH London · As of October 26, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787649830 or 787649830. Listed at 18 retailers as of October 27, 2026, with a 723% 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
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787649830
Dimensions5.63 × 3.80 × 2.36 mm
L/W Ratio1.48
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
5.63 mm3.80 mm0.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG787649830
Side View
Table 61.0%Crown 33.8°Girdle: MediumPavilion 34.9°Culet: LargeDepth 62.1%

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 27
Current: £955 GBP|Low: £93 GBP|High: £980 GBP|Avg: £388 GBP|-2.4%
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
October 29, 2026
Retailer 11£93 GBP
Retailer 7£97 GBP
Retailer 3£154 GBP
Retailer 9£158 GBP
Retailer 6£206 GBP
Retailer 2£236 GBP
Retailer 12£276 GBP
Retailer 8£277 GBP
Retailer 4£499 GBP
Retailer 5£596 GBP
Retailer 13£688 GBP
Retailer 10£933 GBP
MOH London£955 GBP

40 data points across 13 retailers

18 retailers£84 GBP to £688 GBP

A
Cheapest Retailer
-
£84 GBP
$111 USD
A
Retailer 2
-
£93 GBP
$123 USD
View
Final sale: no returns
A
Retailer 3
-
£97 GBP
$129 USD
View
A
Retailer 4
-
£110 GBP
$146 USD
View
A
Retailer 5
-
£110 GBP
$146 USD
View
A
Retailer 6
-
£154 GBP
$205 USD
View
A
Retailer 7
-
£158 GBP
$210 USD
View
B+
Retailer 8
-
£206 GBP
ZAR 4,429 ZAR
View
B+
Retailer 9
-
£236 GBP
View
B
Retailer 10
-
£255 GBP
$339 USD
View
Price last confirmed 15 days ago
B+
Retailer 11
-
£276 GBP
$367 USD
View
B
Retailer 12
-
£277 GBP
$368 USD
View
B
Retailer 13
-
£367 GBP
$488 USD
View
B
Retailer 14
-
£499 GBP
$663 USD
View
B
Retailer 15
-
£596 GBP
View
B
Retailer 16
-
£688 GBP
$914 USD
View
B
Retailer 17
-
£933 GBP
$1,240 USD
View
Price under review
Most Expensive
B
MOH London
LG787649830 · Oct 26
£955 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £84 GBPSave up to £604 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
£84 GBP