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Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG790611687

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790611687

Diamond specifications and retailer prices

From £603 GBP
$803 USD
As of October 29, 2026
Save £2,305 GBP (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,354 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG790611687 or 790611687. Listed at 21 retailers as of October 29, 2026, with a 382% 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°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611687
Dimensions7.76 × 7.79 × 4.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
7.76 mm7.79 mm1.81 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611687
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: £5,354 GBP|Low: £603 GBP|High: £6,308 GBP|Avg: £1,754 GBP|-15.1%
Do Amore Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 6£603 GBP
Retailer 20£656 GBP
Retailer 7£675 GBP
Retailer 4£699 GBP
Retailer 8£699 GBP
Retailer 15£830 GBP
Retailer 21£858 GBP
Retailer 3£884 GBP
Retailer 11£952 GBP
Retailer 5£1,128 GBP
Retailer 2£1,183 GBP
Retailer 13£1,418 GBP
Retailer 18£1,663 GBP
Retailer 12£2,169 GBP
Retailer 19£2,187 GBP
Retailer 9£2,320 GBP
Retailer 16£2,441 GBP
Retailer 10£2,743 GBP
Retailer 14£2,752 GBP
Retailer 17£2,908 GBP
Do Amore Diamonds£5,354 GBP

34 data points across 21 retailers

21 retailers£603 GBP to £2,908 GBP

A
Cheapest Retailer
-
£603 GBP
$803 USD
A
Retailer 2
-
£656 GBP
$873 USD
View
A
Retailer 3
-
£675 GBP
$899 USD
View
Final sale: no returns
Retailer 4
-
£699 GBP
$931 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£699 GBP
$931 USD
View
A
Retailer 6
-
£830 GBP
$1,105 USD
View
A
Retailer 7
-
£858 GBP
$1,143 USD
View
A
Retailer 8
-
£884 GBP
$1,177 USD
View
A
Retailer 9
-
£952 GBP
HK$9,900 HKD
View
B+
Retailer 10
-
£1,128 GBP
$1,502 USD
View
B+
Retailer 11
-
£1,183 GBP
View
B+
Retailer 12
-
£1,418 GBP
ZAR 30,514 ZAR
View
B+
Retailer 13
-
£1,663 GBP
$2,214 USD
View
B
Retailer 14
-
£2,169 GBP
$2,889 USD
View
B+
Retailer 15
-
£2,187 GBP
$2,913 USD
View
B+
Retailer 16
-
£2,320 GBP
$3,089 USD
View
B
Retailer 17
-
£2,441 GBP
$3,250 USD
View
B
Retailer 18
-
£2,743 GBP
SGD 4,936 SGD
View
B
Retailer 19
-
£2,752 GBP
$3,665 USD
View
B
Retailer 20
-
£2,908 GBP
View
Most Expensive
Do Amore Diamonds
27-D47CE4F2F · Oct 29
£5,354 GBP
$7,130 USD
View
Price under review
20 more retailers have this diamond
Prices start from £603 GBPSave up to £2,305 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
£603 GBP