Marquise|Lab Grown|IGI

4.02ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG754507865

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754507865

Diamond specifications and retailer prices

From $7,965 USD
As of October 28, 2026
Save $6,675 USD (46%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $38,094 USD at Taylor and Hart · As of October 20, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754507865 or 754507865. Listed at 31 retailers as of October 28, 2026, with a 84% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754507865
Dimensions8.43 × 8.43 × 5.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
8.43 mm8.43 mm4.02 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754507865
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $27,893 USD|Low: $7,131 USD|High: $62,160 USD|Avg: $20,985 USD
Retailer 1
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Retailer 23
Taylor and Hart
October 22, 2026
Retailer 19$8,010 USD
Retailer 16$8,804 USD
Retailer 7$9,961 USD
Retailer 10$10,033 USD
Retailer 21$10,678 USD
Retailer 2$11,420 USD
Retailer 23$12,335 USD
Retailer 22$12,649 USD
Retailer 11$13,668 USD
Retailer 8$14,640 USD
Retailer 12$15,658 USD
Retailer 13$18,273 USD
Retailer 20$20,142 USD
Retailer 6$20,499 USD
Retailer 5$21,135 USD
Retailer 18$21,452 USD
Retailer 15$21,722 USD
Retailer 17$26,851 USD
Retailer 1$27,893 USD
Retailer 3$31,799 USD
Retailer 14$35,376 USD
Taylor and Hart$38,094 USD
Retailer 9$47,694 USD
Retailer 4$62,160 USD

31 data points across 24 retailers

31 retailers$7,965 USD to $14,640 USD

A
Cheapest Retailer
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$7,965 USD
Retailer 2
-
$8,010 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$8,804 USD
View
Retailer 4
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$9,961 USD
View
Price last confirmed 8 days ago
Retailer 5
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$9,961 USD
View
Price last confirmed 21 days ago
Retailer 6
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$9,961 USD
View
Price last confirmed 30 days ago
Retailer 7
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$10,033 USD
View
Price last confirmed 8 days ago
Retailer 8
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$10,360 USD
View
Price last confirmed 31 days ago
Retailer 9
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$10,678 USD
£8,408 GBP
View
Price last confirmed 13 days ago
Retailer 10
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$11,396 USD
View
Price last confirmed 31 days ago
Retailer 11
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$11,420 USD
View
Price last confirmed 6 days ago
Retailer 12
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$11,555 USD
View
Price last confirmed 26 days ago
Retailer 13
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$11,555 USD
View
Price last confirmed 19 days ago
Retailer 14
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$11,953 USD
View
Price last confirmed 8 days ago
Retailer 15
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$11,953 USD
View
Price last confirmed 19 days ago
Retailer 16
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$11,953 USD
View
Price last confirmed 29 days ago
Retailer 17
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$12,335 USD
View
Price last confirmed 8 days ago
Retailer 18
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$12,649 USD
View
Price last confirmed 8 days ago
B+
Retailer 19
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$14,640 USD
View
Retailer 20
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$15,658 USD
£12,329 GBP
View
Price last confirmed 9 days ago
Retailer 21
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$18,273 USD
£14,388 GBP
View
Price last confirmed 8 days ago
Retailer 22
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$20,142 USD
£15,860 GBP
View
Price last confirmed 8 days ago
Retailer 23
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$20,499 USD
A$31,537 AUD
View
Price last confirmed 21 days ago
Retailer 24
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$21,135 USD
View
Price last confirmed 7 days ago
Retailer 25
-
$26,851 USD
ZAR 433,777 ZAR
View
Price last confirmed 9 days ago
Retailer 26
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$27,893 USD
A$42,912 AUD
View
Price last confirmed 7 days ago
Retailer 27
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$31,799 USD
View
Price last confirmed 9 days ago
Retailer 28
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$35,376 USD
View
Price last confirmed 8 days ago
Most Expensive
Taylor and Hart
CAYX2TK · Oct 20
$38,094 USD
View
Price last confirmed 9 days ago
28 more retailers have this diamond
Prices start from $7,965 USDSave up to $6,675 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
$7,965 USD