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Marquise|Lab Grown|IGI

4.03ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG768611302

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768611302

Diamond specifications and retailer prices

From $5,522 USD
£4,348 GBP
As of October 30, 2026
Save $17,736 USD (76%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $23,257 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.03ct lab-grown marquise diamond

This 4.03ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768611302 or 768611302. Listed at 20 retailers as of October 30, 2026, with prices from $5,522 to $23,257, a $17,736 spread on the same certified stone. Taylor and Hart lists it at $23,257. 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

4.03
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768611302
Dimensions16.29 × 8.42 × 5.20 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.29 mm8.42 mm4.03 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768611302
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.8%

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 30
Current: $5,522 USD|Low: $5,470 USD|High: $18,386 USD|Avg: $9,249 USD|-0.6%
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
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
October 30, 2026
Retailer 1$5,522 USD
Retailer 17$5,698 USD
Retailer 7$5,972 USD
Retailer 9$6,028 USD
Retailer 6$6,381 USD
Retailer 5$6,610 USD
Retailer 8$6,610 USD
Retailer 18$6,610 USD
Retailer 15$7,846 USD
Retailer 16$7,997 USD
Retailer 12$8,467 USD
Retailer 10$9,403 USD
Retailer 2$10,204 USD
Retailer 13$13,522 USD
Retailer 11$14,068 USD
Retailer 14$14,608 USD
Retailer 4$16,788 USD
Retailer 3$18,386 USD

41 data points across 18 retailers

20 retailers$5,522 USD to $23,257 USD

A
Cheapest Retailer
-
$5,522 USD
£4,348 GBP
A
Retailer 2
-
$5,698 USD
View
A
Retailer 3
-
$5,972 USD
View
A
Retailer 4
-
$6,028 USD
View
A
Retailer 5
-
$6,381 USD
View
Final sale: no returns
A
Retailer 6
-
$6,610 USD
View
Retailer 7
-
$6,610 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$6,610 USD
View
A
Retailer 9
-
$6,640 USD
View
A
Retailer 10
-
$7,846 USD
View
A
Retailer 11
-
$7,997 USD
View
A
Retailer 12
-
$8,467 USD
£6,667 GBP
View
A
Retailer 13
-
$9,403 USD
£7,404 GBP
View
A
Retailer 14
-
$10,204 USD
View
B+
Retailer 15
-
$13,522 USD
£10,647 GBP
View
B+
Retailer 16
-
$14,068 USD
ZAR 227,270 ZAR
View
Retailer 17
-
$14,608 USD
A$22,474 AUD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$16,788 USD
View
B+
Retailer 19
-
$18,386 USD
View
Most Expensive
B
Taylor and Hart
03QG3NW · Oct 30
$23,257 USD
View
19 more retailers have this diamond
Prices start from $5,522 USDSave up to $17,736 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
4.03ct Marquise
$5,522 USD