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Round|Lab Grown|IGI

1.81ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG634440621

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634440621

Diamond specifications and retailer prices

From $360 USD
As of October 29, 2026
Save $1,403 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,763 USD at MOH London · As of October 26, 2026
View at MOH London

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG634440621 or 634440621. Listed at 16 retailers as of October 26, 2026, with prices from $360 to $1,763, a $1,403 spread on the same certified stone. MOH London lists it at $1,763. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634440621
Dimensions7.83 × 7.80 × 4.82 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.83 mm7.80 mm1.81 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634440621
Side View
Table 60.0%Crown 34.6°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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 29
Current: $1,763 USD|Low: $305 USD|High: $1,880 USD|Avg: $859 USD|-5.1%
MOH London
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
October 31, 2026
Retailer 3$360 USD
Retailer 14$402 USD
Retailer 12$417 USD
Retailer 2$446 USD
Retailer 7$451 USD
Retailer 10$657 USD
Retailer 6$660 USD
Retailer 11$712 USD
Retailer 13$715 USD
Retailer 5$774 USD
Retailer 4$1,046 USD
Retailer 9$1,309 USD
Retailer 8$1,434 USD
Retailer 15$1,475 USD
MOH London$1,763 USD

31 data points across 15 retailers

16 retailers$360 USD to $1,763 USD

A
Cheapest Retailer
-
$360 USD
A
Retailer 2
-
$402 USD
View
Final sale: no returns
A
Retailer 3
-
$417 USD
View
A
Retailer 4
-
$446 USD
View
A
Retailer 5
-
$451 USD
View
Retailer 6
-
$469 USD
View
Price last confirmed 46 days ago
A
Retailer 7
-
$657 USD
View
A
Retailer 8
-
$660 USD
View
A
Retailer 9
-
$712 USD
View
A
Retailer 10
-
$715 USD
View
A
Retailer 11
-
$774 USD
ZAR 12,509 ZAR
View
B+
Retailer 12
-
$1,046 USD
A$1,609 AUD
View
B
Retailer 13
-
$1,309 USD
View
B+
Retailer 14
-
$1,434 USD
View
B+
Retailer 15
-
$1,475 USD
View
Most Expensive
B
MOH London
LG634440621 · Oct 26
$1,763 USD
£1,388 GBP
View
15 more retailers have this diamond
Prices start from $360 USDSave up to $1,403 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.

A
1.81ct Round
$360 USD