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Emerald|Lab Grown|IGI

1.28ct F VVS1 Emerald Lab Grown Diamond

ID • F/VVS1 • IGI LG831681766

Shape and cutting style on the report: Emerald cut

Certificate IGI LG831681766

Diamond specifications and retailer prices

From £147 GBP
As of November 5, 2026
Save £1,061 GBP (88%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,208 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831681766 or 831681766. Listed at 9 retailers as of November 4, 2026, with prices from £147 to £1,208, a £1,061 spread on the same certified stone. Helzberg Diamonds lists it at £1,208. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831681766
Dimensions7.26 × 5.12 × 3.37 mm
L/W Ratio1.42
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
7.26 mm5.12 mm1.28 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831681766
Side View
Table 64.0%Crown 32.7°Girdle: Slightly ThickPavilion 37.6°Culet: LargeDepth 65.8%

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: Nov 5
Current: £1,208 GBP|Low: £147 GBP|High: £1,208 GBP|Avg: £584 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2£147 GBP
Retailer 6£162 GBP
Retailer 3£288 GBP
Retailer 9£547 GBP
Retailer 4£560 GBP
Retailer 8£562 GBP
Retailer 7£733 GBP
Retailer 5£757 GBP
Helzberg Diamonds£1,208 GBP

2 data points across 9 retailers

9 retailers£147 GBP to £1,208 GBP

A
Cheapest Retailer
-
£147 GBP
Final sale: no returns
A
Retailer 2
-
£162 GBP
View
A
Retailer 3
-
£288 GBP
View
B+
Retailer 4
-
£547 GBP
View
B+
Retailer 5
-
£560 GBP
View
B+
Retailer 6
-
£562 GBP
View
B
Retailer 7
-
£733 GBP
View
B
Retailer 8
-
£757 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMOHNMM · Nov 4
£1,208 GBP
$1,631 USD
View
8 more retailers have this diamond
Prices start from £147 GBPSave up to £1,061 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
1.28ct Emerald
£147 GBP