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Oval|Lab Grown|IGI

1.81ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG512221639

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512221639

Diamond specifications and retailer prices

From $584 CAD
$417 USD
As of October 28, 2026
Save $1,243 CAD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,826 CAD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.81ct lab-grown oval diamond

This 1.81ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG512221639 or 512221639. Listed at 12 retailers as of October 28, 2026, with prices from $584 to $1,826, a $1,243 spread on the same certified stone. Rare Carat lists it at $1,826. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.81
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221639
Dimensions9.52 × 6.80 × 4.30 mm
L/W Ratio1.40
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
9.52 mm6.80 mm1.81 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512221639
Side View
Table 60.5%Crown 36.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.2%

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 28
Current: $1,826 CAD|Low: $549 CAD|High: $1,974 CAD|Avg: $1,098 CAD|-7.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$584 CAD
Retailer 2$607 CAD
Retailer 6$934 CAD
Retailer 4$1,075 CAD
Retailer 7$1,146 CAD
Retailer 8$1,147 CAD
Retailer 3$1,566 CAD
Rare Carat$1,826 CAD

41 data points across 8 retailers

12 retailers$584 CAD to $1,826 CAD

Retailer 1
-
$258 CAD
$184 USD
Price last confirmed 28 days ago
Retailer 2
-
$312 CAD
$223 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$333 CAD
$238 USD
View
Price last confirmed 27 days ago
B+
Retailer 4
-
$584 CAD
$417 USD
View
A
Retailer 5
-
$607 CAD
£341 GBP
View
B+
Retailer 6
-
$934 CAD
$667 USD
View
Retailer 7
-
$1,071 CAD
$765 USD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$1,075 CAD
$768 USD
View
B
Retailer 9
-
$1,146 CAD
$819 USD
View
B
Retailer 10
-
$1,147 CAD
HK$6,400 HKD
View
B
Retailer 11
-
$1,566 CAD
£881 GBP
View
Most Expensive
B
Rare Carat
512221639_l_512221639 · Oct 28
$1,826 CAD
$1,305 USD
View
11 more retailers have this diamond
Prices start from $584 CADSave up to $1,243 CAD

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 Oval
$584 CAD