Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG825640531

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825640531

Diamond specifications and retailer prices

From $351 CAD
$251 USD
As of October 30, 2026
Save $1,543 CAD (81%) vs most expensive(unlock to see where)
21 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 LG825640531 or 825640531. Listed at 21 retailers as of October 30, 2026, with a 440% 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 angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825640531
Dimensions10.66 × 5.58 × 3.52 mm
L/W Ratio1.91
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
10.66 mm5.58 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825640531
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

Caratlytics Score

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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 30
Current: $2,186 CAD|Low: $351 CAD|High: $3,490 CAD|Avg: $1,163 CAD|-1.6%
Rare Carat
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
Retailer 17
October 30, 2026
Retailer 5$351 CAD
Retailer 6$391 CAD
Retailer 14$434 CAD
Retailer 17$434 CAD
Retailer 7$587 CAD
Retailer 13$587 CAD
Retailer 16$745 CAD
Retailer 11$746 CAD
Retailer 2$827 CAD
Retailer 12$1,058 CAD
Retailer 3$1,084 CAD
Retailer 8$1,098 CAD
Retailer 15$1,397 CAD
Retailer 4$1,469 CAD
Retailer 10$1,751 CAD
Retailer 9$1,894 CAD
Rare Carat$2,186 CAD

39 data points across 17 retailers

21 retailers$351 CAD to $1,894 CAD

A
Cheapest Retailer
-
$351 CAD
$251 USD
A
Retailer 2
-
$391 CAD
$280 USD
View
Final sale: no returns
Retailer 3
-
$419 CAD
$300 USD
View
Price last confirmed 22 days ago
A
Retailer 4
-
$434 CAD
$311 USD
View
A
Retailer 5
-
$434 CAD
$311 USD
View
Retailer 6
-
$486 CAD
$348 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$520 CAD
$372 USD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$587 CAD
$420 USD
View
A
Retailer 9
-
$587 CAD
$420 USD
View
A
Retailer 10
-
$745 CAD
€508 EUR
View
A
Retailer 11
-
$746 CAD
ZAR 8,633 ZAR
View
A
Retailer 12
-
$827 CAD
£466 GBP
View
B+
Retailer 13
-
$1,058 CAD
A$1,165 AUD
View
B+
Retailer 14
-
$1,084 CAD
$776 USD
View
B+
Retailer 15
-
$1,098 CAD
$786 USD
View
B+
Retailer 16
-
$1,397 CAD
$1,000 USD
View
B+
Retailer 17
-
$1,469 CAD
$1,052 USD
View
Retailer 18
-
$1,669 CAD
$1,195 USD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$1,751 CAD
£987 GBP
View
B+
Retailer 20
-
$1,894 CAD
$1,356 USD
View
Most Expensive
Rare Carat
NJ33 202 · Oct 21
$2,186 CAD
$1,565 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $351 CADSave up to $1,543 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
$351 CAD