Marquise|Lab Grown|IGI

4.02ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG754561777

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754561777

Diamond specifications and retailer prices

From $6,303 USD
As of October 31, 2026
Save $17,680 USD (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $23,983 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754561777 or 754561777. Listed at 6 retailers as of October 30, 2026, with prices from $6,303 to $23,983, a $17,680 spread on the same certified stone. Taylor and Hart lists it at $23,983. 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

4.02
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754561777
Dimensions17.14 × 7.84 × 5.07 mm
L/W Ratio2.19
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.14 mm7.84 mm4.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754561777
Side View
Table 58.0%Crown 38.5°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 64.7%

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: Oct 31
Current: $8,560 USD|Low: $6,303 USD|High: $23,983 USD|Avg: $12,608 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
October 29, 2026
Retailer 4$6,303 USD
Retailer 1$8,560 USD
Retailer 5$10,584 USD
Retailer 3$11,059 USD
Retailer 2$14,027 USD
Taylor and Hart$23,983 USD

5 data points across 6 retailers

6 retailers$6,303 USD to $23,983 USD

A
Cheapest Retailer
-
$6,303 USD
A
Retailer 2
-
$8,560 USD
£6,740 GBP
View
A
Retailer 3
-
$10,584 USD
View
A
Retailer 4
-
$11,059 USD
€10,532 EUR
View
B+
Retailer 5
-
$14,027 USD
£11,045 GBP
View
Most Expensive
B
Taylor and Hart
YLWBPSZ · Oct 30
$23,983 USD
View
5 more retailers have this diamond
Prices start from $6,303 USDSave up to $17,680 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
4.02ct Marquise
$6,303 USD