CaratHunter
Plans
Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG778645789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645789

Diamond specifications and retailer prices

From £1,631 GBP
$2,186 USD
As of October 29, 2026
Save £1,848 GBP (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,333 GBP at Michael Trio · As of October 30, 2026
View at Michael Trio

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 LG778645789 or 778645789. Listed at 21 retailers as of October 29, 2026, with a 113% 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 angle33.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645789
Dimensions7.83 × 7.87 × 4.75 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
7.83 mm7.87 mm1.81 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645789
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £6,333 GBP|Low: £1,567 GBP|High: £6,333 GBP|Avg: £3,041 GBP
Michael Trio
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
October 30, 2026
Retailer 16£1,631 GBP
Retailer 7£1,775 GBP
Retailer 10£1,826 GBP
Retailer 4£1,893 GBP
Retailer 6£1,940 GBP
Retailer 14£2,015 GBP
Retailer 2£2,595 GBP
Retailer 8£2,602 GBP
Retailer 15£2,702 GBP
Retailer 3£2,705 GBP
Retailer 12£3,323 GBP
Retailer 9£3,479 GBP
Retailer 13£4,799 GBP
Retailer 5£5,053 GBP
Retailer 11£5,162 GBP
Michael Trio£6,333 GBP

44 data points across 16 retailers

21 retailers£1,631 GBP to £3,479 GBP

B+
Cheapest Retailer
-
£1,631 GBP
$2,186 USD
B+
Retailer 2
-
£1,775 GBP
$2,378 USD
View
B+
Retailer 3
-
£1,826 GBP
$2,447 USD
View
Final sale: no returns
Retailer 4
-
£1,893 GBP
$2,536 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
£1,893 GBP
$2,536 USD
View
B+
Retailer 6
-
£1,940 GBP
$2,599 USD
View
B+
Retailer 7
-
£2,015 GBP
$2,700 USD
View
B
Retailer 8
-
£2,188 GBP
HK$22,900 HKD
View
B+
Retailer 9
-
£2,595 GBP
View
B
Retailer 10
-
£2,602 GBP
$3,486 USD
View
B
Retailer 11
-
£2,702 GBP
$3,620 USD
View
B
Retailer 12
-
£2,705 GBP
$3,625 USD
View
B
Retailer 13
-
£3,323 GBP
€4,240 EUR
View
B
Retailer 14
-
£3,479 GBP
ZAR 75,313 ZAR
View
Retailer 15
-
£4,799 GBP
$6,430 USD
View
Price under review
Retailer 16
-
£5,053 GBP
$6,771 USD
View
Price under review
Retailer 17
-
£5,162 GBP
View
Price under review
Retailer 18
-
£5,621 GBP
$7,531 USD
View
Price under review
Most Expensive
Michael Trio
1877721753 · Oct 30
£6,333 GBP
SGD 11,467 SGD
View
Price under review
18 more retailers have this diamond
Prices start from £1,631 GBPSave up to £1,848 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.

B+
1.81ct Round
£1,631 GBP