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Marquise|Lab Grown|IGI

0.51ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG827605414

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG827605414

Diamond specifications and retailer prices

From $420 AUD
$295 USD
As of October 30, 2026
Save $1,981 AUD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,246 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG827605414 or 827605414. Listed at 15 retailers as of October 29, 2026, with a 472% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG827605414
Dimensions8.30 × 4.15 × 2.54 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.30 mm4.15 mm0.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG827605414
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
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 30
Current: $3,246 AUD|Low: $325 AUD|High: $3,246 AUD|Avg: $1,312 AUD
Do Amore Diamonds
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
Retailer 17
Retailer 18
October 31, 2026
Retailer 5$420 AUD
Retailer 14$488 AUD
Retailer 8$789 AUD
Retailer 3$800 AUD
Retailer 15$887 AUD
Retailer 11$1,068 AUD
Retailer 9$1,070 AUD
Retailer 18$1,078 AUD
Retailer 2$1,110 AUD
Retailer 12$1,167 AUD
Retailer 7$1,674 AUD
Retailer 10$1,760 AUD
Retailer 13$1,765 AUD
Retailer 17$2,084 AUD
Retailer 6$2,143 AUD
Retailer 4$2,173 AUD
Retailer 16$2,401 AUD
Do Amore Diamonds$3,246 AUD

19 data points across 18 retailers

15 retailers$420 AUD to $2,401 AUD

A
Cheapest Retailer
-
$420 AUD
$295 USD
A
Retailer 2
-
$488 AUD
$343 USD
View
Final sale: no returns
B+
Retailer 3
-
$799 AUD
$561 USD
View
B+
Retailer 4
-
$800 AUD
$562 USD
View
B+
Retailer 5
-
$1,068 AUD
£591 GBP
View
B
Retailer 6
-
$1,078 AUD
ZAR 12,231 ZAR
View
B
Retailer 7
-
$1,110 AUD
$780 USD
View
B
Retailer 8
-
$1,167 AUD
$820 USD
View
B
Retailer 9
-
$1,674 AUD
$1,176 USD
View
B
Retailer 10
-
$1,765 AUD
CA$1,722 CAD
View
B
Retailer 11
-
$2,084 AUD
$1,464 USD
View
B
Retailer 12
-
$2,143 AUD
$1,505 USD
View
B
Retailer 13
-
$2,173 AUD
$1,527 USD
View
B
Retailer 14
-
$2,401 AUD
£1,328 GBP
View
Most Expensive
Do Amore Diamonds
20-C149315 · Oct 31
$3,246 AUD
$2,280 USD
View
Price under review
14 more retailers have this diamond
Prices start from $420 AUDSave up to $1,981 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
0.51ct Marquise
$420 AUD