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Emerald|Lab Grown|IGI

1.00ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG588352144

Shape and cutting style on the report: Emerald cut

Certificate IGI LG588352144

Diamond specifications and retailer prices

From £122 GBP
$164 USD
As of October 30, 2026
Save £516 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £639 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 SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG588352144 or 588352144. Listed at 20 retailers as of October 29, 2026, with prices from £122 to £639, a £516 spread on the same certified stone. MOH London lists it at £639. 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
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588352144
Dimensions6.66 × 4.77 × 3.10 mm
L/W Ratio1.40
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
6.66 mm4.77 mm1.00 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588352144
Side View
Table 64.0%Crown 33.3°Girdle: Slightly ThickPavilion 38.8°Culet: LNGDepth 65.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £639 GBP|Low: £87 GBP|High: £724 GBP|Avg: £307 GBP|+0.4%
MOH London
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 3£110 GBP
Retailer 13£122 GBP
Retailer 15£127 GBP
Retailer 4£134 GBP
Retailer 12£193 GBP
Retailer 2£235 GBP
Retailer 9£241 GBP
Retailer 10£258 GBP
Retailer 5£273 GBP
Retailer 16£318 GBP
Retailer 8£370 GBP
Retailer 7£390 GBP
Retailer 14£437 GBP
Retailer 11£461 GBP
MOH London£639 GBP
Retailer 6£724 GBP

42 data points across 16 retailers

20 retailers£122 GBP to £639 GBP

Retailer 1
-
£105 GBP
$141 USD
Price last confirmed 28 days ago
Retailer 2
-
£110 GBP
$147 USD
View
Price last confirmed 30 days ago
B+
Retailer 3
-
£122 GBP
$164 USD
View
Final sale: no returns
Retailer 4
-
£127 GBP
$170 USD
View
Price last confirmed 36 days ago
Retailer 5
-
£127 GBP
$170 USD
View
Price last confirmed 17 days ago
Retailer 6
-
£134 GBP
$180 USD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
£136 GBP
$182 USD
View
Retailer 8
-
£136 GBP
$182 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
£162 GBP
HK$1,700 HKD
View
B
Retailer 10
-
£193 GBP
$258 USD
View
B+
Retailer 11
-
£235 GBP
View
B+
Retailer 12
-
£241 GBP
€308 EUR
View
B+
Retailer 13
-
£258 GBP
View
B+
Retailer 14
-
£273 GBP
$365 USD
View
B
Retailer 15
-
£318 GBP
$426 USD
View
B
Retailer 16
-
£390 GBP
SGD 707 SGD
View
Retailer 17
-
£437 GBP
$585 USD
View
Price last confirmed 30 days ago
Retailer 18
-
£437 GBP
$585 USD
View
Price last confirmed 20 days ago
B
Retailer 19
-
£461 GBP
$618 USD
View
Most Expensive
B
MOH London
LG588352144 · Oct 29
£639 GBP
View
19 more retailers have this diamond
Prices start from £122 GBPSave up to £516 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
£122 GBP