CaratHunter
Plans
Emerald|Lab Grown|IGI

1.00ct D SI2 Emerald Lab Grown Diamond

GD • D/SI2 • IGI LG500148302

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500148302

Diamond specifications and retailer prices

From £186 GBP
$248 USD
As of October 28, 2026
Save £542 GBP (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £729 GBP at MOH London · As of October 29, 2026
View at MOH London

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 standard cut grade and certified by IGI LG500148302 or 500148302. Listed at 10 retailers as of October 28, 2026, with prices from £186 to £729, a £542 spread on the same certified stone. MOH London lists it at £729. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.7°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148302
Dimensions6.57 × 4.76 × 3.22 mm
L/W Ratio1.38
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
6.57 mm4.76 mm1.00 ctD / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500148302
Side View
Table 66.0%Crown 25.7°Girdle: MediumPavilion 42.3°Culet: LNGDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £729 GBP|Low: £101 GBP|High: £729 GBP|Avg: £267 GBP|+7.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 7£111 GBP
Retailer 8£129 GBP
Retailer 9£137 GBP
Retailer 10£137 GBP
Retailer 5£186 GBP
Retailer 3£250 GBP
Retailer 4£255 GBP
Retailer 2£275 GBP
Retailer 6£379 GBP
Retailer 11£489 GBP
MOH London£729 GBP

43 data points across 11 retailers

10 retailers£186 GBP to £729 GBP

Retailer 1
-
£111 GBP
$148 USD
Price last confirmed 10 days ago
Retailer 2
-
£129 GBP
$172 USD
View
Price last confirmed 16 days ago
Retailer 3
-
£137 GBP
$183 USD
View
Price last confirmed 12 days ago
Retailer 4
-
£137 GBP
$183 USD
View
Price last confirmed 13 days ago
B
Retailer 5
-
£186 GBP
$248 USD
View
B+
Retailer 6
-
£255 GBP
€324 EUR
View
B+
Retailer 7
-
£275 GBP
View
B
Retailer 8
-
£379 GBP
$505 USD
View
Retailer 9
-
£489 GBP
$651 USD
View
Price last confirmed 11 days ago
Most Expensive
C
MOH London
LG500148302 · Oct 29
£729 GBP
View
9 more retailers have this diamond
Prices start from £186 GBPSave up to £542 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
£186 GBP