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Marquise|Lab Grown|IGI

1.03ct F IF Marquise Lab Grown Diamond

EX • F/IF • IGI LG818677644

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818677644

Diamond specifications and retailer prices

From $297 USD
As of November 5, 2026
Save $963 USD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,260 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818677644 or 818677644. Listed at 21 retailers as of November 4, 2026, with prices from $297 to $1,260, a $963 spread on the same certified stone. Brilliant Earth lists it at $1,260. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818677644
Dimensions9.67 × 5.46 × 3.27 mm
L/W Ratio1.77
Girdle conditionFaceted
Culet sizeNone
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
9.67 mm5.46 mm1.03 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818677644
Side View
Table 62.0%Crown 35.3°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 59.9%

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 5
Current: $1,260 USD|Low: $226 USD|High: $1,770 USD|Avg: $713 USD|-28.8%
Brilliant Earth
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
November 5, 2026
Retailer 7$226 USD
Retailer 5$296 USD
Retailer 12$297 USD
Retailer 4$488 USD
Retailer 10$502 USD
Retailer 14$510 USD
Retailer 2$557 USD
Retailer 3$577 USD
Retailer 6$610 USD
Retailer 13$728 USD
Retailer 9$750 USD
Retailer 8$955 USD
Retailer 11$1,006 USD
Retailer 15$1,184 USD
Brilliant Earth$1,260 USD

45 data points across 15 retailers

21 retailers$297 USD to $1,260 USD

Retailer 1
-
$226 USD
Price last confirmed 34 days ago
Retailer 2
-
$234 USD
View
Price last confirmed 28 days ago
Retailer 3
-
$273 USD
View
Price last confirmed 37 days ago
Retailer 4
-
$288 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$291 USD
View
Price last confirmed 33 days ago
Retailer 6
-
$296 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$297 USD
View
Retailer 8
-
$488 USD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$502 USD
View
A
Retailer 10
-
$510 USD
View
B+
Retailer 11
-
$557 USD
View
B+
Retailer 12
-
$577 USD
View
B+
Retailer 13
-
$610 USD
View
B+
Retailer 14
-
$728 USD
View
B+
Retailer 15
-
$750 USD
View
Retailer 16
-
$938 USD
View
Price last confirmed 36 days ago
Retailer 17
-
$951 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
$955 USD
View
B
Retailer 19
-
$1,006 USD
View
B
Retailer 20
-
$1,184 USD
View
Most Expensive
B
Brilliant Earth
20947976A · Nov 4
$1,260 USD
View
20 more retailers have this diamond
Prices start from $297 USDSave up to $963 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
1.03ct Marquise
$297 USD