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Marquise|Lab Grown|IGI

1.17ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780665641

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780665641

Diamond specifications and retailer prices

From $277 USD
As of October 30, 2026
Save $2,183 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,460 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.17ct lab-grown marquise diamond

This 1.17ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780665641 or 780665641. Listed at 17 retailers as of October 30, 2026, with prices from $277 to $2,460, a $2,183 spread on the same certified stone. Do Amore Diamonds lists it at $2,460. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.17
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665641
Dimensions10.74 × 5.57 × 3.49 mm
L/W Ratio1.93
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
10.74 mm5.57 mm1.17 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665641
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: $2,460 USD|Low: $277 USD|High: $2,800 USD|Avg: $1,050 USD|-7.5%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 17
October 31, 2026
Retailer 14$277 USD
Retailer 5$322 USD
Retailer 9$352 USD
Retailer 11$392 USD
Retailer 15$502 USD
Retailer 6$565 USD
Retailer 17$568 USD
Retailer 8$587 USD
Retailer 12$650 USD
Retailer 2$759 USD
Retailer 16$1,057 USD
Retailer 4$1,089 USD
Retailer 3$1,221 USD
Retailer 13$1,530 USD
Retailer 10$1,890 USD
Retailer 7$2,305 USD
Do Amore Diamonds$2,460 USD

39 data points across 17 retailers

17 retailers$277 USD to $2,460 USD

A
Cheapest Retailer
-
$277 USD
A
Retailer 2
-
$322 USD
View
A
Retailer 3
-
$352 USD
View
Final sale: no returns
A
Retailer 4
-
$392 USD
£309 GBP
View
A
Retailer 5
-
$502 USD
View
A
Retailer 6
-
$565 USD
View
A
Retailer 7
-
$568 USD
View
A
Retailer 8
-
$587 USD
View
A
Retailer 9
-
$650 USD
€619 EUR
View
B+
Retailer 10
-
$759 USD
A$1,168 AUD
View
B+
Retailer 11
-
$1,057 USD
View
B+
Retailer 12
-
$1,089 USD
View
B+
Retailer 13
-
$1,221 USD
View
B+
Retailer 14
-
$1,530 USD
£1,205 GBP
View
B
Retailer 15
-
$1,890 USD
View
B
Retailer 16
-
$2,305 USD
View
Most Expensive
B
Do Amore Diamonds
27-7E40AE39D · Oct 30
$2,460 USD
View
16 more retailers have this diamond
Prices start from $277 USDSave up to $2,183 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
1.17ct Marquise
$277 USD