Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816615069

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816615069

Diamond specifications and retailer prices

From £695 GBP
€882 EUR
As of October 23, 2026
Save £340 GBP (33%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,996 GBP at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct 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 LG816615069 or 816615069. Listed at 20 retailers as of October 23, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615069
Dimensions7.82 × 7.76 × 4.83 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
7.82 mm7.76 mm1.81 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615069
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

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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 23
Current: £2,996 GBP|Low: £409 GBP|High: £3,004 GBP|Avg: £1,260 GBP|-0.3%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 23, 2026
Retailer 13£409 GBP
Retailer 5£428 GBP
Retailer 18£439 GBP
Retailer 2£695 GBP
Retailer 16£700 GBP
Retailer 10£735 GBP
Retailer 4£751 GBP
Retailer 7£807 GBP
Retailer 11£1,017 GBP
Retailer 12£1,036 GBP
Retailer 3£1,409 GBP
Retailer 17£1,431 GBP
Retailer 15£1,506 GBP
Retailer 14£1,531 GBP
Retailer 9£1,572 GBP
Retailer 6£1,988 GBP
Retailer 8£2,459 GBP
Brilliant Earth£2,996 GBP

26 data points across 18 retailers

20 retailers£695 GBP to £1,036 GBP

Retailer 1
-
£382 GBP
$509 USD
Price last confirmed 9 days ago
Retailer 2
-
£428 GBP
$570 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£439 GBP
$584 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£474 GBP
$631 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£695 GBP
€882 EUR
View
Retailer 6
-
£700 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
£735 GBP
$979 USD
View
Price last confirmed 8 days ago
Retailer 8
-
£751 GBP
$1,000 USD
View
Price last confirmed 6 days ago
Retailer 9
-
£807 GBP
ZAR 17,358 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£1,017 GBP
$1,354 USD
View
B+
Retailer 11
-
£1,036 GBP
$1,379 USD
View
Retailer 12
-
£1,321 GBP
$1,759 USD
View
Price last confirmed 43 days ago
Retailer 13
-
£1,409 GBP
$1,876 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£1,431 GBP
$1,906 USD
View
Price last confirmed 8 days ago
Retailer 15
-
£1,506 GBP
SGD 2,711 SGD
View
Price last confirmed 7 days ago
Retailer 16
-
£1,531 GBP
$2,039 USD
View
Price last confirmed 7 days ago
Retailer 17
-
£1,572 GBP
$2,093 USD
View
Price last confirmed 8 days ago
Retailer 18
-
£1,988 GBP
View
Price last confirmed 8 days ago
Retailer 19
-
£2,459 GBP
$3,275 USD
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
21421734A · Oct 22
£2,996 GBP
$3,990 USD
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from £695 GBPSave up to £340 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
1.81ct Round
£695 GBP