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Emerald|Lab Grown|IGI

1.56ct G SI1 Emerald Lab Grown Diamond

EX • G/SI1 • IGI LG605305730

Shape and cutting style on the report: Emerald cut

Certificate IGI LG605305730

Diamond specifications and retailer prices

From £179 GBP
$240 USD
As of October 30, 2026
Save £1,082 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,261 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown emerald diamond

This 1.56ct lab-grown emerald sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605305730 or 605305730. Listed at 15 retailers as of October 29, 2026, with prices from £179 to £1,261, a £1,082 spread on the same certified stone. Brilliant Earth lists it at £1,261. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.56
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605305730
Dimensions8.37 × 5.37 × 3.46 mm
L/W Ratio1.56
Culet sizeLong
Top View
8.37 mm5.37 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605305730
Side View
Table 67.0%Crown 35.1°Girdle: MED-STKPavilion 39.9°Culet: LNGDepth 64.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,261 GBP|Low: £172 GBP|High: £1,299 GBP|Avg: £506 GBP|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 7£179 GBP
Retailer 3£199 GBP
Retailer 11£207 GBP
Retailer 5£222 GBP
Retailer 9£222 GBP
Retailer 8£369 GBP
Retailer 14£375 GBP
Retailer 2£421 GBP
Retailer 6£466 GBP
Retailer 13£559 GBP
Retailer 10£714 GBP
Retailer 12£895 GBP
Retailer 4£986 GBP
Brilliant Earth£1,261 GBP

41 data points across 14 retailers

15 retailers£179 GBP to £1,261 GBP

A
Cheapest Retailer
-
£179 GBP
$240 USD
A
Retailer 2
-
£199 GBP
$267 USD
View
Final sale: no returns
A
Retailer 3
-
£207 GBP
$278 USD
View
Retailer 4
-
£222 GBP
$298 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£222 GBP
$298 USD
View
A
Retailer 6
-
£369 GBP
€471 EUR
View
B+
Retailer 7
-
£375 GBP
$502 USD
View
B+
Retailer 8
-
£421 GBP
View
B+
Retailer 9
-
£466 GBP
$625 USD
View
B+
Retailer 10
-
£559 GBP
$749 USD
View
B
Retailer 11
-
£714 GBP
$957 USD
View
B
Retailer 12
-
£753 GBP
$1,009 USD
View
B
Retailer 13
-
£895 GBP
View
B
Retailer 14
-
£986 GBP
$1,321 USD
View
Most Expensive
B
Brilliant Earth
20602264A · Oct 29
£1,261 GBP
$1,690 USD
View
14 more retailers have this diamond
Prices start from £179 GBPSave up to £1,082 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
1.56ct Emerald
£179 GBP