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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG799699355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799699355

Diamond specifications and retailer prices

From $587 CAD
$420 USD
As of October 30, 2026
Save $1,157 CAD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,186 CAD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799699355 or 799699355. Listed at 9 retailers as of October 26, 2026, with a 197% 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

1.20
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799699355
Dimensions10.84 × 5.52 × 3.50 mm
L/W Ratio1.96
Girdle conditionFaceted
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
10.84 mm5.52 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799699355
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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 30
Current: $2,186 CAD|Low: $587 CAD|High: $3,490 CAD|Avg: $1,368 CAD|-0.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$587 CAD
Retailer 4$745 CAD
Retailer 6$785 CAD
Retailer 2$827 CAD
Retailer 5$1,084 CAD
Retailer 7$1,469 CAD
Retailer 3$1,744 CAD
Rare Carat$2,186 CAD

37 data points across 8 retailers

9 retailers$587 CAD to $1,744 CAD

Retailer 1
-
$572 CAD
HK$3,200 HKD
Price last confirmed 56 days ago
A
Retailer 2
-
$587 CAD
$420 USD
View
A
Retailer 3
-
$745 CAD
€508 EUR
View
A
Retailer 4
-
$785 CAD
$562 USD
View
A
Retailer 5
-
$827 CAD
£466 GBP
View
B+
Retailer 6
-
$1,084 CAD
$776 USD
View
B+
Retailer 7
-
$1,469 CAD
$1,052 USD
View
B+
Retailer 8
-
$1,744 CAD
£983 GBP
View
Most Expensive
Rare Carat
NJ27 87A · Oct 21
$2,186 CAD
$1,565 USD
View
Price last confirmed 9 days ago
8 more retailers have this diamond
Prices start from $587 CADSave up to $1,157 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
1.20ct Marquise
$587 CAD