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Round|Lab Grown|IGI

1.91ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804649846

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804649846

Diamond specifications and retailer prices

From £363 GBP
$484 USD
As of October 29, 2026
Save £2,851 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,214 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct 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 LG804649846 or 804649846. Listed at 23 retailers as of October 29, 2026, with prices from £363 to £3,214, a £2,851 spread on the same certified stone. Brilliant Earth lists it at £3,214. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804649846
Dimensions8.14 × 8.09 × 4.78 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
8.14 mm8.09 mm1.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804649846
Side View
Table 60.0%Crown 33°Girdle: MediumPavilion 40.6°Culet: NoneDepth 58.9%

Caratlytics Score

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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: £3,214 GBP|Low: £363 GBP|High: £3,214 GBP|Avg: £1,219 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 5£363 GBP
Retailer 20£407 GBP
Retailer 16£424 GBP
Retailer 8£451 GBP
Retailer 12£493 GBP
Retailer 6£638 GBP
Retailer 17£702 GBP
Retailer 21£702 GBP
Retailer 2£746 GBP
Retailer 13£752 GBP
Retailer 15£774 GBP
Retailer 3£1,048 GBP
Retailer 4£1,140 GBP
Retailer 9£1,447 GBP
Retailer 7£1,468 GBP
Retailer 14£1,559 GBP
Retailer 19£1,575 GBP
Retailer 11£1,621 GBP
Retailer 18£1,882 GBP
Retailer 10£2,617 GBP
Brilliant Earth£3,214 GBP

25 data points across 21 retailers

23 retailers£363 GBP to £3,214 GBP

A+
Cheapest Retailer
-
£363 GBP
$484 USD
A
Retailer 2
-
£407 GBP
$542 USD
View
A
Retailer 3
-
£424 GBP
$565 USD
View
Final sale: no returns
A
Retailer 4
-
£451 GBP
$600 USD
View
Retailer 5
-
£493 GBP
$657 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£638 GBP
$849 USD
View
A
Retailer 7
-
£702 GBP
$935 USD
View
A
Retailer 8
-
£702 GBP
$935 USD
View
A
Retailer 9
-
£746 GBP
View
A
Retailer 10
-
£752 GBP
€954 EUR
View
A
Retailer 11
-
£774 GBP
ZAR 16,646 ZAR
View
A
Retailer 12
-
£1,048 GBP
$1,395 USD
View
B+
Retailer 13
-
£1,140 GBP
$1,518 USD
View
Retailer 14
-
£1,364 GBP
$1,817 USD
View
Price last confirmed 44 days ago
B+
Retailer 15
-
£1,447 GBP
$1,927 USD
View
B+
Retailer 16
-
£1,468 GBP
$1,956 USD
View
B+
Retailer 17
-
£1,559 GBP
SGD 2,806 SGD
View
B+
Retailer 18
-
£1,575 GBP
$2,098 USD
View
B+
Retailer 19
-
£1,621 GBP
$2,159 USD
View
B+
Retailer 20
-
£1,684 GBP
$2,243 USD
View
B+
Retailer 21
-
£1,882 GBP
View
B
Retailer 22
-
£2,617 GBP
$3,485 USD
View
Most Expensive
B
Brilliant Earth
21421010A · Oct 29
£3,214 GBP
$4,280 USD
View
22 more retailers have this diamond
Prices start from £363 GBPSave up to £2,851 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+
1.91ct Round
£363 GBP