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Round|Lab Grown|IGI

1.99ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG818654304

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818654304

Diamond specifications and retailer prices

From £384 GBP
$515 USD
As of October 29, 2026
Save £2,399 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,784 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.99ct lab-grown round diamond

This 1.99ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654304 or 818654304. Listed at 20 retailers as of October 29, 2026, with prices from £384 to £2,784, a £2,399 spread on the same certified stone. Brilliant Earth lists it at £2,784. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.99
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654304
Dimensions8.02 × 7.98 × 5.00 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.02 mm7.98 mm1.99 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654304
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A+
Exceptional
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: £2,784 GBP|Low: £384 GBP|High: £3,329 GBP|Avg: £1,427 GBP|-16.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
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Retailer 19
October 30, 2026
Retailer 5£384 GBP
Retailer 18£430 GBP
Retailer 6£447 GBP
Retailer 9£476 GBP
Retailer 17£578 GBP
Retailer 12£735 GBP
Retailer 3£740 GBP
Retailer 14£791 GBP
Retailer 15£818 GBP
Retailer 16£1,111 GBP
Retailer 4£1,227 GBP
Retailer 10£1,252 GBP
Retailer 8£1,549 GBP
Retailer 7£1,636 GBP
Retailer 19£1,708 GBP
Retailer 2£1,814 GBP
Retailer 13£1,999 GBP
Retailer 11£2,713 GBP
Brilliant Earth£2,784 GBP

28 data points across 19 retailers

20 retailers£384 GBP to £2,784 GBP

A+
Cheapest Retailer
-
£384 GBP
$515 USD
A
Retailer 2
-
£430 GBP
$576 USD
View
A
Retailer 3
-
£447 GBP
$599 USD
View
Final sale: no returns
A
Retailer 4
-
£476 GBP
$638 USD
View
Retailer 5
-
£515 GBP
$690 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£578 GBP
$775 USD
View
A
Retailer 7
-
£735 GBP
View
A
Retailer 8
-
£740 GBP
$991 USD
View
A
Retailer 9
-
£791 GBP
€1,009 EUR
View
A
Retailer 10
-
£818 GBP
ZAR 17,717 ZAR
View
B+
Retailer 11
-
£1,111 GBP
$1,488 USD
View
B+
Retailer 12
-
£1,227 GBP
$1,644 USD
View
B+
Retailer 13
-
£1,252 GBP
$1,678 USD
View
B+
Retailer 14
-
£1,549 GBP
$2,076 USD
View
B+
Retailer 15
-
£1,636 GBP
SGD 2,963 SGD
View
B+
Retailer 16
-
£1,708 GBP
$2,289 USD
View
B+
Retailer 17
-
£1,814 GBP
$2,430 USD
View
B+
Retailer 18
-
£1,999 GBP
View
Retailer 19
-
£2,713 GBP
$3,635 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21434468A · Oct 30
£2,784 GBP
$3,730 USD
View
19 more retailers have this diamond
Prices start from £384 GBPSave up to £2,399 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+
1.99ct Round
£384 GBP