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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 $2,186 USD
As of October 29, 2026
Save $2,476 USD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,486 USD 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
Color
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: $8,486 USD|Low: $2,099 USD|High: $8,486 USD|Avg: $4,075 USD
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$2,186 USD
Retailer 7$2,378 USD
Retailer 10$2,447 USD
Retailer 4$2,536 USD
Retailer 6$2,599 USD
Retailer 14$2,700 USD
Retailer 2$3,477 USD
Retailer 8$3,486 USD
Retailer 15$3,620 USD
Retailer 3$3,625 USD
Retailer 12$4,452 USD
Retailer 9$4,662 USD
Retailer 13$6,430 USD
Retailer 5$6,771 USD
Retailer 11$6,916 USD
Michael Trio$8,486 USD

44 data points across 16 retailers

21 retailers$2,186 USD to $4,662 USD

B+
Cheapest Retailer
-
$2,186 USD
B+
Retailer 2
-
$2,378 USD
View
B+
Retailer 3
-
$2,447 USD
View
Final sale: no returns
Retailer 4
-
$2,536 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$2,536 USD
View
B+
Retailer 6
-
$2,599 USD
View
B+
Retailer 7
-
$2,700 USD
View
B
Retailer 8
-
$2,931 USD
HK$22,900 HKD
View
B+
Retailer 9
-
$3,477 USD
£2,737 GBP
View
B
Retailer 10
-
$3,486 USD
View
B
Retailer 11
-
$3,620 USD
View
B
Retailer 12
-
$3,625 USD
View
B
Retailer 13
-
$4,452 USD
€4,240 EUR
View
B
Retailer 14
-
$4,662 USD
ZAR 75,313 ZAR
View
Retailer 15
-
$6,430 USD
View
Price under review
Retailer 16
-
$6,771 USD
View
Price under review
Retailer 17
-
$6,916 USD
£5,446 GBP
View
Price under review
Retailer 18
-
$7,531 USD
View
Price under review
Most Expensive
Michael Trio
1877721753 · Oct 30
$8,486 USD
SGD 11,467 SGD
View
Price under review
18 more retailers have this diamond
Prices start from $2,186 USDSave up to $2,476 USD

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
$2,186 USD