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Emerald|Lab Grown|IGI

1.00ct D SI2 Emerald Lab Grown Diamond

VG • D/SI2 • IGI LG450042801

Shape and cutting style on the report: Emerald cut

Certificate IGI LG450042801

Diamond specifications and retailer prices

From £124 GBP
HK$1,300 HKD
As of November 1, 2026
Save £504 GBP (80%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £628 GBP at B2C Jewels · As of November 1, 2026
View at B2C Jewels

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG450042801 or 450042801. Listed at 2 retailers as of November 1, 2026, with prices from £124 to £628, a £504 spread on the same certified stone. B2C Jewels lists it at £628. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle27.2°
Pavilion angle43.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450042801
Dimensions6.30 × 4.64 × 3.31 mm
L/W Ratio1.36
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.30 mm4.64 mm1.00 ctD / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG450042801
Side View
Table 64.5%Crown 27.2°Girdle: STK-THKPavilion 43.7°Culet: LNGDepth 71.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £628 GBP|Low: £99 GBP|High: £821 GBP|Avg: £318 GBP|+93.1%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 23, 2026
Retailer 7£124 GBP
Retailer 4£192 GBP
Retailer 2£194 GBP
Retailer 3£218 GBP
Retailer 8£245 GBP
Retailer 6£310 GBP
Retailer 5£369 GBP
B2C Jewels£628 GBP
Retailer 9£709 GBP

62 data points across 9 retailers

2 retailers£124 GBP to £628 GBP

B+
Cheapest Retailer
-
£124 GBP
HK$1,300 HKD
Most Expensive
C
B2C Jewels
19777437 · Nov 1
£628 GBP
$842 USD
View
1 more retailer has this diamond
Prices start from £124 GBPSave up to £504 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.

B+
1.00ct Emerald
£124 GBP