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Marquise|Lab Grown|IGI

1.75ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG846664348

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846664348

Diamond specifications and retailer prices

From $818 USD
£644 GBP
As of November 1, 2026
Save $3,162 USD (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,980 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.75ct lab-grown marquise diamond

This 1.75ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846664348 or 846664348. Listed at 9 retailers as of October 31, 2026, with prices from $818 to $3,980, a $3,162 spread on the same certified stone. Brilliant Earth lists it at $3,980. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.75
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664348
Dimensions12.00 × 6.31 × 4.05 mm
L/W Ratio1.90
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
12.00 mm6.31 mm1.75 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664348
Side View
Table 61.0%Crown 36.8°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.2%

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: $3,980 USD|Low: $818 USD|High: $4,435 USD|Avg: $2,296 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4$818 USD
Retailer 5$900 USD
Retailer 8$1,184 USD
Retailer 6$1,473 USD
Retailer 3$2,600 USD
Retailer 7$2,791 USD
Retailer 2$3,049 USD
Retailer 9$3,070 USD
Brilliant Earth$3,980 USD

7 data points across 9 retailers

9 retailers$818 USD to $3,980 USD

A
Cheapest Retailer
-
$818 USD
£644 GBP
A
Retailer 2
-
$900 USD
View
A
Retailer 3
-
$1,184 USD
View
A
Retailer 4
-
$1,473 USD
View
B+
Retailer 5
-
$2,600 USD
View
B+
Retailer 6
-
$2,791 USD
View
B+
Retailer 7
-
$3,049 USD
£2,401 GBP
View
B+
Retailer 8
-
$3,070 USD
View
Most Expensive
B
Brilliant Earth
22319315A · Oct 31
$3,980 USD
View
8 more retailers have this diamond
Prices start from $818 USDSave up to $3,162 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
1.75ct Marquise
$818 USD