Emerald|Lab Grown|IGI

1.28ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG843661173

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843661173

Diamond specifications and retailer prices

From $191 USD
As of November 1, 2026
Save $916 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,107 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown emerald diamond

This 1.28ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG843661173 or 843661173. Listed at 11 retailers as of November 1, 2026, with prices from $191 to $1,107, a $916 spread on the same certified stone. MOH London lists it at $1,107. 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

1.28
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843661173
Dimensions7.53 × 5.05 × 3.46 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm5.05 mm1.28 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843661173
Side View
Table 64.0%Crown 38.7°Girdle: MediumPavilion 42.3°Culet: LargeDepth 68.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,107 USD|Low: $191 USD|High: $1,107 USD|Avg: $549 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 8$191 USD
Retailer 2$222 USD
Retailer 4$237 USD
Retailer 9$415 USD
Retailer 3$431 USD
Retailer 7$480 USD
Retailer 6$578 USD
Retailer 5$764 USD
Retailer 10$816 USD
MOH London$1,107 USD

4 data points across 10 retailers

11 retailers$191 USD to $1,107 USD

A
Cheapest Retailer
-
$191 USD
A
Retailer 2
-
$222 USD
View
A
Retailer 3
-
$237 USD
View
B+
Retailer 4
-
$415 USD
View
A
Retailer 5
-
$431 USD
£340 GBP
View
B+
Retailer 6
-
$480 USD
View
B+
Retailer 7
-
$578 USD
A$889 AUD
View
B+
Retailer 8
-
$630 USD
View
B
Retailer 9
-
$764 USD
View
B
Retailer 10
-
$816 USD
View
Most Expensive
B
MOH London
LG843661173 · Nov 2
$1,107 USD
£872 GBP
View
10 more retailers have this diamond
Prices start from $191 USDSave up to $916 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
1.28ct Emerald
$191 USD