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Marquise|Lab Grown|IGI

1.91ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG818623828

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818623828

Diamond specifications and retailer prices

From $1,439 AUD
$1,011 USD
As of October 30, 2026
Save $11,345 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $12,784 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.91ct lab-grown marquise diamond

This 1.91ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818623828 or 818623828. Listed at 22 retailers as of October 29, 2026, with prices from $1,439 to $12,784, a $11,345 spread on the same certified stone. Do Amore Diamonds lists it at $12,784. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818623828
Dimensions12.59 × 6.58 × 4.13 mm
L/W Ratio1.91
Girdle conditionFaceted
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
12.59 mm6.58 mm1.91 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818623828
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.8%

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 30
Current: $12,784 AUD|Low: $1,439 AUD|High: $14,578 AUD|Avg: $4,217 AUD|-12.3%
Do Amore Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 10$1,439 AUD
Retailer 18$1,566 AUD
Retailer 6$1,613 AUD
Retailer 5$1,670 AUD
Retailer 15$1,922 AUD
Retailer 20$1,955 AUD
Retailer 21$2,349 AUD
Retailer 2$2,672 AUD
Retailer 16$2,797 AUD
Retailer 13$3,389 AUD
Retailer 12$3,455 AUD
Retailer 19$3,491 AUD
Retailer 7$3,878 AUD
Retailer 3$4,342 AUD
Retailer 8$5,098 AUD
Retailer 9$5,184 AUD
Retailer 4$5,332 AUD
Retailer 17$5,930 AUD
Retailer 14$5,944 AUD
Retailer 11$6,552 AUD
Do Amore Diamonds$12,784 AUD

33 data points across 21 retailers

22 retailers$1,439 AUD to $12,784 AUD

A
Cheapest Retailer
-
$1,439 AUD
$1,011 USD
A
Retailer 2
-
$1,566 AUD
$1,100 USD
View
A
Retailer 3
-
$1,613 AUD
$1,133 USD
View
Final sale: no returns
A
Retailer 4
-
$1,670 AUD
$1,173 USD
View
Retailer 5
-
$1,670 AUD
$1,173 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,922 AUD
$1,350 USD
View
A
Retailer 7
-
$1,955 AUD
$1,373 USD
View
A
Retailer 8
-
$2,349 AUD
$1,650 USD
View
A
Retailer 9
-
$2,672 AUD
£1,478 GBP
View
A
Retailer 10
-
$2,797 AUD
€1,871 EUR
View
B+
Retailer 11
-
$3,389 AUD
ZAR 38,455 ZAR
View
B+
Retailer 12
-
$3,455 AUD
$2,427 USD
View
B+
Retailer 13
-
$3,491 AUD
$2,452 USD
View
B+
Retailer 14
-
$3,878 AUD
$2,724 USD
View
B+
Retailer 15
-
$4,342 AUD
$3,050 USD
View
B+
Retailer 16
-
$5,098 AUD
£2,820 GBP
View
B+
Retailer 17
-
$5,184 AUD
$3,642 USD
View
B+
Retailer 18
-
$5,332 AUD
$3,746 USD
View
B+
Retailer 19
-
$5,930 AUD
£3,280 GBP
View
B
Retailer 20
-
$5,944 AUD
$4,175 USD
View
B
Retailer 21
-
$6,552 AUD
$4,602 USD
View
Most Expensive
B
Do Amore Diamonds
27-0B70763D2 · Oct 29
$12,784 AUD
$8,980 USD
View
21 more retailers have this diamond
Prices start from $1,439 AUDSave up to $11,345 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
1.91ct Marquise
$1,439 AUD