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Emerald|Lab Grown|IGI

6.57ct E VS1 Emerald Lab Grown Diamond

EX • E/VS1 • IGI LG843686207

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843686207

Diamond specifications and retailer prices

From £839 GBP
$1,117 USD
As of October 29, 2026
Save £5,176 GBP (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £6,015 GBP at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

About this 6.57ct lab-grown emerald diamond

This 6.57ct lab-grown emerald sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843686207 or 843686207. Listed at 4 retailers as of October 27, 2026, with prices from £839 to £6,015, a £5,176 spread on the same certified stone. Brilliant Earth lists it at £6,015. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.57
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843686207
Dimensions12.46 × 8.92 × 6.15 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.46 mm8.92 mm6.57 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843686207
Side View
Table 62.0%Crown 37.4°Girdle: Slightly ThickPavilion 40.5°Culet: LargeDepth 68.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £6,015 GBP|Low: £839 GBP|High: £6,015 GBP|Avg: £3,192 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4£839 GBP
Retailer 2£1,272 GBP
Retailer 3£4,415 GBP
Brilliant Earth£6,015 GBP

15 data points across 4 retailers

4 retailers£839 GBP to £6,015 GBP

A
Cheapest Retailer
-
£839 GBP
$1,117 USD
Final sale: no returns
A
Retailer 2
-
£1,272 GBP
View
B
Retailer 3
-
£4,415 GBP
$5,880 USD
View
Most Expensive
B
Brilliant Earth
21815539A · Oct 27
£6,015 GBP
$8,010 USD
View
3 more retailers have this diamond
Prices start from £839 GBPSave up to £5,176 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
6.57ct Emerald
£839 GBP