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Emerald|Lab Grown|IGI

1.63ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG514252356

Shape and cutting style on the report: Emerald cut

Certificate IGI LG514252356

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 30, 2026
Save £863 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,006 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.63ct lab-grown emerald diamond

This 1.63ct 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 LG514252356 or 514252356. Listed at 16 retailers as of October 29, 2026, with prices from £143 to £1,006, a £863 spread on the same certified stone. Brilliant Earth lists it at £1,006. 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

1.63
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514252356
Dimensions8.44 × 5.42 × 3.57 mm
L/W Ratio1.56
Culet sizeLong
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
8.44 mm5.42 mm1.63 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514252356
Side View
Table 63.0%Crown 24.4°Girdle: MediumPavilion 40.5°Culet: LNGDepth 65.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,006 GBP|Low: £138 GBP|High: £1,029 GBP|Avg: £417 GBP|-2.2%
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 30, 2026
Retailer 11£143 GBP
Retailer 5£161 GBP
Retailer 4£167 GBP
Retailer 3£178 GBP
Retailer 12£178 GBP
Retailer 7£305 GBP
Retailer 13£312 GBP
Retailer 2£325 GBP
Retailer 6£375 GBP
Retailer 14£573 GBP
Retailer 10£575 GBP
Retailer 9£811 GBP
Retailer 8£838 GBP
Brilliant Earth£1,006 GBP

45 data points across 14 retailers

16 retailers£143 GBP to £1,006 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£161 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£167 GBP
$222 USD
View
A
Retailer 4
-
£178 GBP
$237 USD
View
A
Retailer 5
-
£178 GBP
$237 USD
View
A
Retailer 6
-
£202 GBP
HK$2,100 HKD
View
A
Retailer 7
-
£305 GBP
€387 EUR
View
B+
Retailer 8
-
£312 GBP
$415 USD
View
A
Retailer 9
-
£325 GBP
View
B+
Retailer 10
-
£375 GBP
$500 USD
View
B+
Retailer 11
-
£573 GBP
$763 USD
View
B+
Retailer 12
-
£575 GBP
$766 USD
View
B+
Retailer 13
-
£581 GBP
SGD 1,045 SGD
View
B
Retailer 14
-
£811 GBP
$1,080 USD
View
B
Retailer 15
-
£838 GBP
View
Most Expensive
B
Brilliant Earth
19056166A · Oct 29
£1,006 GBP
$1,340 USD
View
15 more retailers have this diamond
Prices start from £143 GBPSave up to £863 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
1.63ct Emerald
£143 GBP