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 $295 USD
As of October 27, 2026
Save $1,392 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,280 USD at Do Amore Diamonds · As of October 29, 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 13 retailers as of October 27, 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,280 USD|Low: $228 USD|High: $2,280 USD|Avg: $906 USD
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 29, 2026
Retailer 18$295 USD
Retailer 11$343 USD
Retailer 6$554 USD
Retailer 16$562 USD
Retailer 12$623 USD
Retailer 7$657 USD
Retailer 5$720 USD
Retailer 2$748 USD
Retailer 8$752 USD
Retailer 15$757 USD
Retailer 4$1,176 USD
Retailer 9$1,236 USD
Retailer 10$1,240 USD
Retailer 14$1,464 USD
Retailer 3$1,505 USD
Retailer 17$1,527 USD
Retailer 13$1,687 USD
Do Amore Diamonds$2,280 USD

18 data points across 18 retailers

13 retailers$295 USD to $1,687 USD

A
Cheapest Retailer
-
$295 USD
A
Retailer 2
-
$343 USD
View
Final sale: no returns
B+
Retailer 3
-
$562 USD
View
B+
Retailer 4
-
$623 USD
View
B+
Retailer 5
-
$657 USD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$748 USD
£589 GBP
View
B
Retailer 7
-
$757 USD
ZAR 12,231 ZAR
View
B
Retailer 8
-
$1,176 USD
View
B
Retailer 9
-
$1,464 USD
View
B
Retailer 10
-
$1,505 USD
View
B
Retailer 11
-
$1,527 USD
View
B
Retailer 12
-
$1,687 USD
£1,328 GBP
View
Most Expensive
B
Do Amore Diamonds
20-C149315 · Oct 29
$2,280 USD
View
Price under review
12 more retailers have this diamond
Prices start from $295 USDSave up to $1,392 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
0.51ct Marquise
$295 USD