Marquise|Lab Grown|IGI

4.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG829608667

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG829608667

Diamond specifications and retailer prices

From $3,814 USD
£3,003 GBP
As of October 29, 2026
Save $12,322 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,136 USD at Taylor and Hart · As of October 27, 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 LG829608667 or 829608667. Listed at 18 retailers as of October 27, 2026, with prices from $3,814 to $16,136, a $12,322 spread on the same certified stone. Taylor and Hart lists it at $16,136. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829608667
Dimensions16.02 × 8.10 × 5.23 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.02 mm8.10 mm4.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG829608667
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $9,689 USD|Low: $3,791 USD|High: $16,136 USD|Avg: $8,671 USD|+0.0%
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
Taylor and Hart
October 29, 2026
Retailer 9$3,814 USD
Retailer 6$4,610 USD
Retailer 14$4,898 USD
Retailer 7$5,954 USD
Retailer 4$6,017 USD
Retailer 2$6,038 USD
Retailer 11$6,600 USD
Retailer 10$7,345 USD
Retailer 1$9,689 USD
Retailer 8$9,804 USD
Retailer 12$9,911 USD
Retailer 13$10,984 USD
Retailer 5$14,020 USD
Retailer 3$15,541 USD
Taylor and Hart$16,136 USD

27 data points across 15 retailers

18 retailers$3,814 USD to $16,136 USD

A+
Cheapest Retailer
-
$3,814 USD
£3,003 GBP
A
Retailer 2
-
$3,925 USD
View
A
Retailer 3
-
$4,553 USD
View
A
Retailer 4
-
$4,610 USD
View
A
Retailer 5
-
$4,898 USD
View
Final sale: no returns
A
Retailer 6
-
$5,954 USD
£4,688 GBP
View
A
Retailer 7
-
$6,017 USD
View
A
Retailer 8
-
$6,038 USD
View
A
Retailer 9
-
$6,370 USD
£5,016 GBP
View
A
Retailer 10
-
$6,600 USD
View
A
Retailer 11
-
$7,345 USD
€6,995 EUR
View
A
Retailer 12
-
$9,689 USD
ZAR 156,534 ZAR
View
A
Retailer 13
-
$9,804 USD
£7,720 GBP
View
Retailer 14
-
$9,911 USD
A$15,247 AUD
View
Price last confirmed 7 days ago
A
Retailer 15
-
$10,984 USD
View
B+
Retailer 16
-
$14,020 USD
View
B+
Retailer 17
-
$15,541 USD
SGD 21,001 SGD
View
Most Expensive
B+
Taylor and Hart
K3UKP8L · Oct 27
$16,136 USD
View
17 more retailers have this diamond
Prices start from $3,814 USDSave up to $12,322 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
$3,814 USD