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Round|Lab Grown|IGI

1.99ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG780685558

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780685558

Diamond specifications and retailer prices

From £1,037 GBP
$1,390 USD
As of October 28, 2026
Save £3,970 GBP (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £5,008 GBP at Brilliant Earth · As of October 29, 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 LG780685558 or 780685558. Listed at 23 retailers as of October 28, 2026, with prices from £1,037 to £5,008, a £3,970 spread on the same certified stone. Brilliant Earth lists it at £5,008. 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 angle33.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780685558
Dimensions8.11 × 8.05 × 4.94 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
8.11 mm8.05 mm1.99 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780685558
Side View
Table 57.0%Crown 33.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: £5,008 GBP|Low: £1,037 GBP|High: £5,008 GBP|Avg: £2,318 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5£1,037 GBP
Retailer 3£1,226 GBP
Retailer 9£1,411 GBP
Retailer 10£1,440 GBP
Retailer 2£1,508 GBP
Retailer 11£1,536 GBP
Retailer 4£1,874 GBP
Retailer 6£1,976 GBP
Retailer 12£2,947 GBP
Retailer 7£3,472 GBP
Retailer 13£3,594 GBP
Retailer 8£4,345 GBP
Brilliant Earth£5,008 GBP

43 data points across 13 retailers

23 retailers£1,037 GBP to £5,008 GBP

Retailer 1
-
£926 GBP
$1,241 USD
Price last confirmed 20 days ago
Retailer 2
-
£1,008 GBP
$1,351 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
£1,037 GBP
$1,390 USD
View
Final sale: no returns
Retailer 4
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 18 days ago
Retailer 5
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£1,226 GBP
$1,643 USD
View
B+
Retailer 7
-
£1,409 GBP
$1,888 USD
View
B+
Retailer 8
-
£1,411 GBP
$1,890 USD
View
B+
Retailer 9
-
£1,440 GBP
A$2,968 AUD
View
B+
Retailer 10
-
£1,508 GBP
View
B+
Retailer 11
-
£1,536 GBP
$2,058 USD
View
B+
Retailer 12
-
£1,874 GBP
$2,511 USD
View
B+
Retailer 13
-
£1,976 GBP
ZAR 42,766 ZAR
View
Retailer 14
-
£2,014 GBP
$2,699 USD
View
Price last confirmed 23 days ago
Retailer 15
-
£2,059 GBP
$2,759 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
£2,947 GBP
$3,948 USD
View
B
Retailer 17
-
£3,084 GBP
$4,132 USD
View
B
Retailer 18
-
£3,371 GBP
$4,517 USD
View
B
Retailer 19
-
£3,472 GBP
View
B
Retailer 20
-
£3,594 GBP
SGD 6,508 SGD
View
B
Retailer 21
-
£3,769 GBP
$5,051 USD
View
B
Retailer 22
-
£4,345 GBP
€5,544 EUR
View
Most Expensive
B
Brilliant Earth
19705441A · Oct 29
£5,008 GBP
$6,710 USD
View
22 more retailers have this diamond
Prices start from £1,037 GBPSave up to £3,970 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
£1,037 GBP