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Emerald|Lab Grown|IGI

1.00ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG840634459

Shape and cutting style on the report: Emerald cut

Certificate IGI LG840634459

Diamond specifications and retailer prices

From £168 GBP
$225 USD
As of October 29, 2026
Save £1,246 GBP (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,414 GBP at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634459 or 840634459. Listed at 20 retailers as of October 29, 2026, with prices from £168 to £1,414, a £1,246 spread on the same certified stone. Helzberg Diamonds lists it at £1,414. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634459
Dimensions6.84 × 4.73 × 3.13 mm
L/W Ratio1.45
Culet sizeLarge
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
6.84 mm4.73 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634459
Side View
Table 63.0%Crown 33.6°Girdle: MED-STKPavilion 38.9°Culet: LargeDepth 66.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,414 GBP|Low: £168 GBP|High: £1,955 GBP|Avg: £594 GBP
Helzberg Diamonds
Retailer 2
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Retailer 20
October 30, 2026
Retailer 10£168 GBP
Retailer 6£188 GBP
Retailer 5£195 GBP
Retailer 18£207 GBP
Retailer 19£207 GBP
Retailer 11£355 GBP
Retailer 16£357 GBP
Retailer 14£364 GBP
Retailer 7£381 GBP
Retailer 13£387 GBP
Retailer 4£409 GBP
Retailer 12£589 GBP
Retailer 3£668 GBP
Retailer 17£670 GBP
Retailer 9£707 GBP
Retailer 8£760 GBP
Retailer 20£834 GBP
Retailer 15£918 GBP
Retailer 2£1,254 GBP
Helzberg Diamonds£1,414 GBP

12 data points across 20 retailers

20 retailers£168 GBP to £1,414 GBP

A
Cheapest Retailer
-
£168 GBP
$225 USD
A
Retailer 2
-
£188 GBP
$252 USD
View
Final sale: no returns
A
Retailer 3
-
£195 GBP
$261 USD
View
A
Retailer 4
-
£207 GBP
$278 USD
View
A
Retailer 5
-
£207 GBP
$278 USD
View
A
Retailer 6
-
£355 GBP
$475 USD
View
A
Retailer 7
-
£357 GBP
ZAR 7,729 ZAR
View
A
Retailer 8
-
£364 GBP
€465 EUR
View
A
Retailer 9
-
£381 GBP
$511 USD
View
A
Retailer 10
-
£387 GBP
View
B+
Retailer 11
-
£409 GBP
$548 USD
View
B+
Retailer 12
-
£589 GBP
SGD 1,067 SGD
View
B+
Retailer 13
-
£668 GBP
$895 USD
View
B+
Retailer 14
-
£670 GBP
$898 USD
View
B+
Retailer 15
-
£707 GBP
$948 USD
View
B+
Retailer 16
-
£760 GBP
$1,018 USD
View
B
Retailer 17
-
£834 GBP
View
B
Retailer 18
-
£918 GBP
$1,230 USD
View
B
Retailer 19
-
£1,254 GBP
$1,680 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKKLP · Oct 30
£1,414 GBP
$1,894 USD
View
19 more retailers have this diamond
Prices start from £168 GBPSave up to £1,246 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
1.00ct Emerald
£168 GBP