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Emerald|Lab Grown|IGI

1.28ct D VS1 Emerald Lab Grown Diamond

EX • D/VS1 • IGI LG843659089

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843659089

Diamond specifications and retailer prices

From £149 GBP
$200 USD
As of October 30, 2026
Save £873 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,022 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843659089 or 843659089. Listed at 19 retailers as of October 29, 2026, with prices from £149 to £1,022, a £873 spread on the same certified stone. Brilliant Earth lists it at £1,022. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843659089
Dimensions7.51 × 5.06 × 3.41 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm5.06 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843659089
Side View
Table 65.0%Crown 36.3°Girdle: MediumPavilion 40.5°Culet: LargeDepth 67.4%

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 30
Current: £1,022 GBP|Low: £149 GBP|High: £1,022 GBP|Avg: £460 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 8£149 GBP
Retailer 6£166 GBP
Retailer 5£173 GBP
Retailer 17£185 GBP
Retailer 18£185 GBP
Retailer 14£318 GBP
Retailer 9£322 GBP
Retailer 12£322 GBP
Retailer 2£339 GBP
Retailer 4£381 GBP
Retailer 7£425 GBP
Retailer 15£453 GBP
Retailer 11£515 GBP
Retailer 3£595 GBP
Retailer 16£597 GBP
Retailer 10£635 GBP
Retailer 13£870 GBP
Retailer 19£891 GBP
Brilliant Earth£1,022 GBP

10 data points across 19 retailers

19 retailers£149 GBP to £1,022 GBP

A
Cheapest Retailer
-
£149 GBP
$200 USD
A
Retailer 2
-
£166 GBP
$223 USD
View
Final sale: no returns
A
Retailer 3
-
£173 GBP
$232 USD
View
A
Retailer 4
-
£185 GBP
$248 USD
View
A
Retailer 5
-
£185 GBP
$248 USD
View
A
Retailer 6
-
£318 GBP
ZAR 6,880 ZAR
View
A
Retailer 7
-
£322 GBP
$431 USD
View
A
Retailer 8
-
£322 GBP
€411 EUR
View
A
Retailer 9
-
£339 GBP
View
B+
Retailer 10
-
£381 GBP
$511 USD
View
B+
Retailer 11
-
£425 GBP
$570 USD
View
B+
Retailer 12
-
£453 GBP
A$933 AUD
View
B+
Retailer 13
-
£515 GBP
$690 USD
View
B
Retailer 14
-
£595 GBP
$797 USD
View
B
Retailer 15
-
£597 GBP
$800 USD
View
B
Retailer 16
-
£635 GBP
$851 USD
View
B
Retailer 17
-
£870 GBP
View
B
Retailer 18
-
£891 GBP
$1,194 USD
View
Most Expensive
B
Brilliant Earth
22223408A · Oct 29
£1,022 GBP
$1,370 USD
View
18 more retailers have this diamond
Prices start from £149 GBPSave up to £873 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
£149 GBP