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Marquise|Lab Grown|IGI

1.35ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG784624535

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784624535

Diamond specifications and retailer prices

From $646 USD
As of November 1, 2026
Save $2,134 USD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,780 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.35ct lab-grown marquise diamond

This 1.35ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784624535 or 784624535. Listed at 9 retailers as of November 1, 2026, with prices from $646 to $2,780, a $2,134 spread on the same certified stone. Brilliant Earth lists it at $2,780. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784624535
Dimensions11.48 × 5.82 × 3.58 mm
L/W Ratio1.97
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
11.48 mm5.82 mm1.35 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG784624535
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 61.5%

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: Nov 1
Current: $2,780 USD|Low: $610 USD|High: $2,780 USD|Avg: $1,026 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 6$646 USD
Retailer 5$649 USD
Retailer 4$651 USD
Retailer 2$704 USD
Retailer 7$979 USD
Retailer 8$1,325 USD
Retailer 3$1,603 USD
Brilliant Earth$2,780 USD

42 data points across 8 retailers

9 retailers$646 USD to $2,780 USD

A
Cheapest Retailer
-
$646 USD
A
Retailer 2
-
$649 USD
View
A
Retailer 3
-
$651 USD
€620 EUR
View
A
Retailer 4
-
$704 USD
£554 GBP
View
A
Retailer 5
-
$979 USD
View
B+
Retailer 6
-
$1,325 USD
View
B+
Retailer 7
-
$1,603 USD
£1,262 GBP
View
B
Retailer 8
-
$1,915 USD
View
Most Expensive
B
Brilliant Earth
22181517A · Nov 2
$2,780 USD
View
8 more retailers have this diamond
Prices start from $646 USDSave up to $2,134 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
1.35ct Marquise
$646 USD