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Emerald|Lab Grown|IGI

1.58ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG660415920

Shape and cutting style on the report: Emerald cut

Certificate IGI LG660415920

Diamond specifications and retailer prices

From £322 GBP
$432 USD
As of October 30, 2026
Save £670 GBP (68%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £993 GBP at Novita Diamonds · As of October 30, 2026
View at Novita Diamonds

About this 1.58ct lab-grown emerald diamond

This 1.58ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG660415920 or 660415920. Listed at 3 retailers as of October 30, 2026, with prices from £322 to £993, a £670 spread on the same certified stone. Novita Diamonds lists it at £993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660415920
Dimensions7.75 × 5.49 × 3.64 mm
L/W Ratio1.41
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
7.75 mm5.49 mm1.58 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660415920
Side View
Table 66.0%Crown 37.5°Girdle: Slightly ThickPavilion 38.9°Culet: LargeDepth 66.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £993 GBP|Low: £322 GBP|High: £3,239 GBP|Avg: £1,304 GBP|-1.1%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3£322 GBP
Retailer 2£653 GBP
Novita Diamonds£993 GBP
Retailer 4£3,239 GBP

5 data points across 4 retailers

3 retailers£322 GBP to £993 GBP

B+
Cheapest Retailer
-
£322 GBP
$432 USD
A
Retailer 2
-
£653 GBP
$875 USD
View
Most Expensive
B+
Novita Diamonds
cert_660415920 · Oct 30
£993 GBP
A$2,046 AUD
View
2 more retailers have this diamond
Prices start from £322 GBPSave up to £670 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
1.58ct Emerald
£322 GBP