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Emerald|Lab Grown|IGI

0.51ct D VS1 Emerald Lab Grown Diamond

VG • D/VS1 • IGI LG837659979

Shape and cutting style on the report: Emerald cut

Certificate IGI LG837659979

Diamond specifications and retailer prices

From £71 GBP
$94 USD
As of October 27, 2026
Save £576 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £647 GBP at MOH London · As of October 25, 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 LG837659979 or 837659979. Listed at 18 retailers as of October 25, 2026, with prices from £71 to £647, a £576 spread on the same certified stone. MOH London lists it at £647. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837659979
Dimensions5.25 × 3.73 × 2.58 mm
L/W Ratio1.41
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
5.25 mm3.73 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG837659979
Side View
Table 70.0%Crown 36.6°Girdle: Slightly ThickPavilion 33°Culet: LargeDepth 69.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £647 GBP|Low: £71 GBP|High: £649 GBP|Avg: £237 GBP|-0.3%
MOH London
Retailer 2
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Retailer 17
October 29, 2026
Retailer 8£71 GBP
Retailer 4£79 GBP
Retailer 6£93 GBP
Retailer 16£93 GBP
Retailer 15£119 GBP
Retailer 12£159 GBP
Retailer 2£164 GBP
Retailer 10£165 GBP
Retailer 14£169 GBP
Retailer 11£212 GBP
Retailer 17£241 GBP
Retailer 3£263 GBP
Retailer 7£283 GBP
Retailer 13£315 GBP
Retailer 9£327 GBP
Retailer 5£644 GBP
MOH London£647 GBP

15 data points across 17 retailers

18 retailers£71 GBP to £647 GBP

A
Cheapest Retailer
-
£71 GBP
$94 USD
A
Retailer 2
-
£79 GBP
$105 USD
View
Final sale: no returns
A
Retailer 3
-
£93 GBP
$124 USD
View
A
Retailer 4
-
£93 GBP
$124 USD
View
A
Retailer 5
-
£119 GBP
$158 USD
View
A
Retailer 6
-
£159 GBP
ZAR 3,409 ZAR
View
A
Retailer 7
-
£164 GBP
€207 EUR
View
B+
Retailer 8
-
£165 GBP
View
B+
Retailer 9
-
£169 GBP
$225 USD
View
B+
Retailer 10
-
£212 GBP
View
B+
Retailer 11
-
£226 GBP
$300 USD
View
B
Retailer 12
-
£241 GBP
$320 USD
View
B+
Retailer 13
-
£263 GBP
$349 USD
View
B
Retailer 14
-
£283 GBP
$376 USD
View
B
Retailer 15
-
£315 GBP
$419 USD
View
B
Retailer 16
-
£327 GBP
$435 USD
View
B
Retailer 17
-
£644 GBP
$856 USD
View
Most Expensive
B
MOH London
LG837659979 · Oct 25
£647 GBP
View
17 more retailers have this diamond
Prices start from £71 GBPSave up to £576 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
£71 GBP