Marquise|Lab Grown|IGI

5.03ct E IF Marquise Lab Grown Diamond

GD • E/IF • IGI LG742508486

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG742508486

Diamond specifications and retailer prices

From $6,416 USD
As of October 26, 2026
Save $11,984 USD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $25,195 USD at Taylor and Hart · As of October 14, 2026
View at Taylor and Hart

About this 5.03ct lab-grown marquise diamond

This 5.03ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG742508486 or 742508486. Listed at 20 retailers as of October 26, 2026, with a 187% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.03
Carat
E
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742508486
Dimensions18.29 × 8.91 × 5.37 mm
L/W Ratio2.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.29 mm8.91 mm5.03 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742508486
Side View
Table 60.0%Crown 31.9°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $9,386 USD|Low: $5,262 USD|High: $26,266 USD|Avg: $12,659 USD|-23.1%
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
Retailer 16
Taylor and Hart
October 27, 2026
Retailer 9$6,416 USD
Retailer 4$6,539 USD
Retailer 5$7,017 USD
Retailer 14$7,250 USD
Retailer 6$8,430 USD
Retailer 2$9,260 USD
Retailer 11$9,298 USD
Retailer 1$9,386 USD
Retailer 10$9,430 USD
Retailer 3$10,363 USD
Retailer 16$13,650 USD
Retailer 12$14,629 USD
Retailer 13$14,686 USD
Retailer 8$15,987 USD
Retailer 7$18,400 USD
Retailer 15$20,225 USD
Taylor and Hart$25,195 USD

33 data points across 17 retailers

20 retailers$6,416 USD to $18,400 USD

A
Retailer 1
-
$6,266 USD
Price last confirmed 18 days ago
A
Retailer 2
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$6,416 USD
View
A
Retailer 3
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$6,517 USD
View
Price last confirmed 15 days ago
A
Retailer 4
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$7,268 USD
View
Price last confirmed 19 days ago
A
Retailer 5
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$7,268 USD
View
Price last confirmed 17 days ago
A
Retailer 6
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$7,527 USD
View
Price last confirmed 34 days ago
A
Retailer 7
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$8,430 USD
View
Price last confirmed 15 days ago
A
Retailer 8
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$8,628 USD
View
Price last confirmed 19 days ago
A
Retailer 9
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$9,260 USD
View
Price last confirmed 14 days ago
A
Retailer 10
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$9,298 USD
£7,322 GBP
View
Price last confirmed 14 days ago
A
Retailer 11
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$9,386 USD
€8,939 EUR
View
A
Retailer 12
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$9,430 USD
View
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Retailer 13
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$10,363 USD
£8,160 GBP
View
Price last confirmed 15 days ago
A
Retailer 14
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$13,650 USD
View
Price last confirmed 15 days ago
A
Retailer 15
-
$14,629 USD
ZAR 236,333 ZAR
View
Price last confirmed 14 days ago
A
Retailer 16
-
$14,686 USD
£11,564 GBP
View
Price last confirmed 14 days ago
B+
Retailer 17
-
$15,987 USD
A$24,595 AUD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
$18,400 USD
View
B+
Retailer 19
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$20,225 USD
View
Price last confirmed 15 days ago
Most Expensive
B+
Taylor and Hart
XQN74FQ · Oct 14
$25,195 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $6,416 USDSave up to $11,984 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
5.03ct Marquise
$6,416 USD