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 $9,134 AUD
$6,416 USD
As of October 31, 2026
Save $10,512 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $35,868 AUD 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 19 retailers as of October 30, 2026, with a 115% 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
Colour
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 31
Current: $19,646 AUD|Low: $7,491 AUD|High: $37,392 AUD|Avg: $18,007 AUD|-27.4%
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 30, 2026
Retailer 10$9,134 AUD
Retailer 5$9,309 AUD
Retailer 6$9,989 AUD
Retailer 15$10,321 AUD
Retailer 7$12,001 AUD
Retailer 3$13,183 AUD
Retailer 12$13,237 AUD
Retailer 9$13,362 AUD
Retailer 11$13,425 AUD
Retailer 4$14,753 AUD
Retailer 2$19,432 AUD
Retailer 1$19,646 AUD
Retailer 13$20,826 AUD
Retailer 14$20,907 AUD
Retailer 8$22,759 AUD
Retailer 16$28,792 AUD
Taylor and Hart$35,868 AUD

33 data points across 17 retailers

19 retailers$9,134 AUD to $19,646 AUD

Retailer 1
-
$8,920 AUD
$6,266 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$9,134 AUD
$6,416 USD
View
Retailer 3
-
$9,278 AUD
$6,517 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$10,347 AUD
$7,268 USD
View
Price last confirmed 20 days ago
Retailer 5
-
$10,347 AUD
$7,268 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$10,715 AUD
$7,527 USD
View
Price last confirmed 36 days ago
Retailer 7
-
$12,001 AUD
$8,430 USD
View
Price last confirmed 16 days ago
Retailer 8
-
$12,283 AUD
$8,628 USD
View
Price last confirmed 20 days ago
Retailer 9
-
$13,237 AUD
£7,322 GBP
View
Price last confirmed 15 days ago
A
Retailer 10
-
$13,362 AUD
€8,939 EUR
View
A
Retailer 11
-
$13,425 AUD
$9,430 USD
View
Retailer 12
-
$14,753 AUD
£8,160 GBP
View
Price last confirmed 16 days ago
Retailer 13
-
$19,432 AUD
$13,650 USD
View
Price last confirmed 16 days ago
A
Retailer 14
-
$19,646 AUD
$13,800 USD
View
Retailer 15
-
$20,826 AUD
ZAR 236,333 ZAR
View
Price last confirmed 16 days ago
Retailer 16
-
$20,907 AUD
£11,564 GBP
View
Price last confirmed 16 days ago
Retailer 17
-
$22,759 AUD
View
Price last confirmed 32 days ago
Retailer 18
-
$28,792 AUD
$20,225 USD
View
Price last confirmed 17 days ago
Most Expensive
Taylor and Hart
XQN74FQ · Oct 14
$35,868 AUD
$25,195 USD
View
Price last confirmed 16 days ago
18 more retailers have this diamond
Prices start from $9,134 AUDSave up to $10,512 AUD

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
$9,134 AUD