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Marquise|Lab Grown|IGI

3.05ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG804665551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804665551

Diamond specifications and retailer prices

From $3,546 USD
As of November 3, 2026
Save $14,233 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,779 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804665551 or 804665551. Listed at 14 retailers as of October 31, 2026, with prices from $3,546 to $17,779, a $14,233 spread on the same certified stone. Taylor and Hart lists it at $17,779. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665551
Dimensions14.69 × 7.55 × 4.78 mm
L/W Ratio1.95
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
14.69 mm7.55 mm3.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665551
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.3%

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 3
Current: $6,400 USD|Low: $3,546 USD|High: $17,779 USD|Avg: $9,885 USD|-15.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 4, 2026
Retailer 10$3,546 USD
Retailer 12$4,264 USD
Retailer 4$6,323 USD
Retailer 1$6,400 USD
Retailer 11$7,455 USD
Retailer 3$7,675 USD
Retailer 9$8,185 USD
Retailer 8$8,480 USD
Retailer 7$10,332 USD
Retailer 13$11,284 USD
Retailer 5$11,463 USD
Retailer 6$11,621 USD
Retailer 2$13,420 USD
Taylor and Hart$17,779 USD

42 data points across 14 retailers

14 retailers$3,546 USD to $17,779 USD

A
Cheapest Retailer
-
$3,546 USD
A
Retailer 2
-
$4,264 USD
View
B+
Retailer 3
-
$6,323 USD
View
B+
Retailer 4
-
$6,400 USD
View
B+
Retailer 5
-
$7,455 USD
View
B+
Retailer 6
-
$7,675 USD
View
B+
Retailer 7
-
$8,185 USD
View
B+
Retailer 8
-
$8,480 USD
View
B+
Retailer 9
-
$10,332 USD
View
B
Retailer 10
-
$11,284 USD
View
B+
Retailer 11
-
$11,463 USD
View
B+
Retailer 12
-
$11,621 USD
View
B
Retailer 13
-
$13,420 USD
View
Most Expensive
B
Taylor and Hart
MYJJX3E · Oct 31
$17,779 USD
View
13 more retailers have this diamond
Prices start from $3,546 USDSave up to $14,233 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
3.05ct Marquise
$3,546 USD