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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 $128 USD
As of October 27, 2026
Save $1,203 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,331 USD 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 27, 2026, with prices from $128 to $1,331, a $1,203 spread on the same certified stone. MOH London lists it at $1,331. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,331 USD|Low: $123 USD|High: $1,340 USD|Avg: $359 USD|-0.7%
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 29, 2026
Retailer 15$128 USD
Retailer 7$148 USD
Retailer 12$151 USD
Retailer 3$159 USD
Retailer 6$159 USD
Retailer 9$265 USD
Retailer 10$282 USD
Retailer 11$301 USD
Retailer 4$302 USD
Retailer 14$401 USD
Retailer 13$420 USD
Retailer 8$480 USD
Retailer 5$510 USD
Retailer 2$583 USD
Retailer 16$630 USD
MOH London$1,331 USD

44 data points across 16 retailers

17 retailers$128 USD to $1,331 USD

A
Cheapest Retailer
-
$128 USD
B+
Retailer 2
-
$148 USD
View
B+
Retailer 3
-
$151 USD
View
Final sale: no returns
B+
Retailer 4
-
$159 USD
View
B+
Retailer 5
-
$159 USD
View
B+
Retailer 6
-
$265 USD
£209 GBP
View
B+
Retailer 7
-
$282 USD
€269 EUR
View
B+
Retailer 8
-
$301 USD
£237 GBP
View
B+
Retailer 9
-
$302 USD
View
B+
Retailer 10
-
$401 USD
View
B+
Retailer 11
-
$420 USD
View
B
Retailer 12
-
$480 USD
View
B
Retailer 13
-
$510 USD
View
B
Retailer 14
-
$583 USD
View
B
Retailer 15
-
$630 USD
View
B
Retailer 16
-
$964 USD
View
Most Expensive
B
MOH London
LG566301290 · Oct 29
$1,331 USD
£1,048 GBP
View
16 more retailers have this diamond
Prices start from $128 USDSave up to $1,203 USD

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
$128 USD