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Marquise|Lab Grown|IGI

1.01ct D SI1 Marquise Lab Grown Diamond

GD • D/SI1 • IGI LG840609850

Shape and cutting style on the report: Modified marquise step cut

Certificate IGI LG840609850

Diamond specifications and retailer prices

From $1,425 CAD
$1,020 USD
As of October 31, 2026
Save $228 CAD (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,653 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.01ct lab-grown marquise diamond

This 1.01ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG840609850 or 840609850. Listed at 3 retailers as of October 30, 2026, with prices from $1,425 to $1,653, a $228 spread on the same certified stone. Reve Diamonds lists it at $1,653. 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

1.01
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840609850
Dimensions10.55 × 5.28 × 2.75 mm
L/W Ratio2.00
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.55 mm5.28 mm1.01 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840609850
Side View
Table 64.0%Crown 36.6°Girdle: MediumPavilion 35.8°Culet: NoneDepth 52.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,556 CAD|Low: $1,425 CAD|High: $1,653 CAD|Avg: $1,532 CAD|-0.5%
Retailer 1
Retailer 2
Reve Diamonds
October 30, 2026
Retailer 2$1,425 CAD
Retailer 1$1,556 CAD
Reve Diamonds$1,653 CAD

8 data points across 3 retailers

3 retailers$1,425 CAD to $1,653 CAD

B
Cheapest Retailer
-
$1,425 CAD
$1,020 USD
B
Retailer 2
-
$1,556 CAD
£877 GBP
View
Most Expensive
C
Reve Diamonds
B4F455313 · Oct 30
$1,653 CAD
$1,183 USD
View
2 more retailers have this diamond
Prices start from $1,425 CADSave up to $228 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.

B
1.01ct Marquise
$1,425 CAD