Emerald|Lab Grown|IGI

0.99ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG566301290

Shape and cutting style on the report: Emerald cut

Certificate IGI LG566301290

Diamond specifications and retailer prices

From £99 GBP
$132 USD
As of October 29, 2026
Save £895 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £993 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.99ct lab-grown emerald diamond

This 0.99ct lab-grown emerald sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG566301290 or 566301290. Listed at 17 retailers as of October 29, 2026, with prices from £99 to £993, a £895 spread on the same certified stone. MOH London lists it at £993. 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

0.99
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566301290
Dimensions6.92 × 4.77 × 3.13 mm
L/W Ratio1.45
Culet sizeLarge
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
6.92 mm4.77 mm0.99 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566301290
Side View
Table 68.5%Crown 29.4°Girdle: MED-STKPavilion 39.5°Culet: LargeDepth 65.6%

Caratlytics Score

How it works →
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 29
Current: £993 GBP|Low: £92 GBP|High: £1,000 GBP|Avg: £270 GBP|-0.7%
MOH London
Retailer 2
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October 30, 2026
Retailer 14£99 GBP
Retailer 8£110 GBP
Retailer 2£117 GBP
Retailer 5£119 GBP
Retailer 7£119 GBP
Retailer 13£206 GBP
Retailer 16£211 GBP
Retailer 10£232 GBP
Retailer 12£232 GBP
Retailer 3£299 GBP
Retailer 17£313 GBP
Retailer 9£358 GBP
Retailer 6£381 GBP
Retailer 15£435 GBP
Retailer 4£470 GBP
Retailer 11£729 GBP
MOH London£993 GBP

45 data points across 17 retailers

17 retailers£99 GBP to £993 GBP

A
Cheapest Retailer
-
£99 GBP
$132 USD
B+
Retailer 2
-
£110 GBP
$148 USD
View
B+
Retailer 3
-
£117 GBP
$157 USD
View
Final sale: no returns
B+
Retailer 4
-
£119 GBP
$159 USD
View
B+
Retailer 5
-
£119 GBP
$159 USD
View
B+
Retailer 6
-
£206 GBP
View
B+
Retailer 7
-
£211 GBP
€269 EUR
View
B+
Retailer 8
-
£232 GBP
$311 USD
View
B+
Retailer 9
-
£232 GBP
View
B+
Retailer 10
-
£299 GBP
$401 USD
View
B+
Retailer 11
-
£313 GBP
$420 USD
View
B
Retailer 12
-
£358 GBP
$480 USD
View
B
Retailer 13
-
£381 GBP
$510 USD
View
B
Retailer 14
-
£435 GBP
$583 USD
View
B
Retailer 15
-
£470 GBP
$630 USD
View
B
Retailer 16
-
£729 GBP
$977 USD
View
Most Expensive
C
MOH London
LG566301290 · Oct 29
£993 GBP
View
16 more retailers have this diamond
Prices start from £99 GBPSave up to £895 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
0.99ct Emerald
£99 GBP