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Marquise|Lab Grown|IGI

1.73ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG668472310

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG668472310

Diamond specifications and retailer prices

From $1,214 AUD
$853 USD
As of October 30, 2026
Save $9,575 AUD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $10,789 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.73ct lab-grown marquise diamond

This 1.73ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG668472310 or 668472310. Listed at 24 retailers as of October 29, 2026, with prices from $1,214 to $10,789, a $9,575 spread on the same certified stone. Do Amore Diamonds lists it at $10,789. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668472310
Dimensions12.36 × 6.22 × 3.92 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.36 mm6.22 mm1.73 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668472310
Side View
Table 59.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 63.0%

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: $10,789 AUD|Low: $1,166 AUD|High: $10,789 AUD|Avg: $3,608 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 30, 2026
Retailer 6$1,214 AUD
Retailer 5$1,321 AUD
Retailer 4$1,409 AUD
Retailer 18$1,409 AUD
Retailer 14$1,623 AUD
Retailer 2$1,717 AUD
Retailer 11$2,397 AUD
Retailer 13$2,859 AUD
Retailer 17$3,082 AUD
Retailer 3$3,240 AUD
Retailer 15$3,869 AUD
Retailer 7$4,373 AUD
Retailer 10$4,407 AUD
Retailer 8$4,447 AUD
Retailer 9$4,624 AUD
Retailer 16$5,067 AUD
Retailer 12$5,302 AUD
Do Amore Diamonds$10,789 AUD

31 data points across 18 retailers

24 retailers$1,214 AUD to $10,789 AUD

A
Cheapest Retailer
-
$1,214 AUD
$853 USD
A
Retailer 2
-
$1,321 AUD
$928 USD
View
A
Retailer 3
-
$1,409 AUD
$990 USD
View
Retailer 4
-
$1,409 AUD
$990 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,465 AUD
$1,029 USD
View
Final sale: no returns
A
Retailer 6
-
$1,617 AUD
$1,136 USD
View
A
Retailer 7
-
$1,621 AUD
$1,139 USD
View
A
Retailer 8
-
$1,623 AUD
$1,140 USD
View
A
Retailer 9
-
$1,717 AUD
£950 GBP
View
A
Retailer 10
-
$1,988 AUD
$1,397 USD
View
A
Retailer 11
-
$2,397 AUD
£1,326 GBP
View
B+
Retailer 12
-
$2,859 AUD
ZAR 32,446 ZAR
View
B+
Retailer 13
-
$3,082 AUD
$2,165 USD
View
B+
Retailer 14
-
$3,240 AUD
$2,276 USD
View
Retailer 15
-
$3,869 AUD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
$4,295 AUD
£2,376 GBP
View
B+
Retailer 17
-
$4,373 AUD
$3,072 USD
View
B+
Retailer 18
-
$4,407 AUD
$3,096 USD
View
Retailer 19
-
$4,447 AUD
View
Price last confirmed 21 days ago
B
Retailer 20
-
$4,624 AUD
$3,249 USD
View
B+
Retailer 21
-
$5,067 AUD
$3,560 USD
View
B+
Retailer 22
-
$5,302 AUD
£2,933 GBP
View
B
Retailer 23
-
$5,541 AUD
$3,893 USD
View
Most Expensive
B
Do Amore Diamonds
27-1B04D236C · Oct 29
$10,789 AUD
$7,580 USD
View
23 more retailers have this diamond
Prices start from $1,214 AUDSave up to $9,575 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
1.73ct Marquise
$1,214 AUD