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Emerald|Lab Grown|IGI

1.57ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG647469102

Shape and cutting style on the report: Emerald cut

Certificate IGI LG647469102

Diamond specifications and retailer prices

From £127 GBP
$169 USD
As of October 30, 2026
Save £624 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £751 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.57ct lab-grown emerald diamond

This 1.57ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG647469102 or 647469102. Listed at 10 retailers as of October 28, 2026, with prices from £127 to £751, a £624 spread on the same certified stone. Rare Carat lists it at £751. 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

1.57
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647469102
Dimensions7.97 × 5.34 × 3.81 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.97 mm5.34 mm1.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647469102
Side View
Table 59.0%Crown 33.7°Girdle: MED-STKPavilion 41.5°Culet: LargeDepth 71.3%

Caratlytics Score

How it works →
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: Oct 30
Current: £751 GBP|Low: £127 GBP|High: £1,389 GBP|Avg: £481 GBP|-9.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 6£127 GBP
Retailer 13£147 GBP
Retailer 7£157 GBP
Retailer 10£183 GBP
Retailer 3£276 GBP
Retailer 2£280 GBP
Retailer 12£282 GBP
Retailer 9£355 GBP
Retailer 11£505 GBP
Retailer 4£638 GBP
Retailer 8£739 GBP
Rare Carat£751 GBP
Retailer 5£1,389 GBP

4 data points across 13 retailers

10 retailers£127 GBP to £751 GBP

A
Cheapest Retailer
-
£127 GBP
$169 USD
A
Retailer 2
-
£147 GBP
$196 USD
View
A
Retailer 3
-
£157 GBP
$209 USD
View
A
Retailer 4
-
£183 GBP
HK$1,900 HKD
View
A
Retailer 5
-
£280 GBP
View
B+
Retailer 6
-
£282 GBP
$375 USD
View
B+
Retailer 7
-
£355 GBP
$473 USD
View
B+
Retailer 8
-
£505 GBP
$673 USD
View
B
Retailer 9
-
£739 GBP
View
Most Expensive
B
Rare Carat
KI1024691KF647 · Oct 28
£751 GBP
$1,000 USD
View
9 more retailers have this diamond
Prices start from £127 GBPSave up to £624 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
1.57ct Emerald
£127 GBP