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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG700512487

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG700512487

Diamond specifications and retailer prices

From $524 AUD
As of November 6, 2026
Save $3,347 AUD (86%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,871 AUD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700512487 or 700512487. Listed at 29 retailers as of November 6, 2026, with prices from $524 to $3,871, a $3,347 spread on the same certified stone. Do Amore Diamonds lists it at $3,871. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700512487
Dimensions11.10 × 5.44 × 3.46 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizePointed
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
11.10 mm5.44 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700512487
Side View
Table 54.0%Crown 35°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 63.6%

Caratlytics Score

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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: Nov 6
Current: $3,871 AUD|Low: $349 AUD|High: $5,043 AUD|Avg: $1,720 AUD|+15.3%
Do Amore Diamonds
Retailer 2
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November 6, 2026
Retailer 16$349 AUD
Retailer 13$524 AUD
Retailer 15$704 AUD
Retailer 20$707 AUD
Retailer 21$786 AUD
Retailer 4$843 AUD
Retailer 17$863 AUD
Retailer 2$966 AUD
Retailer 14$1,034 AUD
Retailer 18$1,051 AUD
Retailer 9$1,341 AUD
Retailer 7$1,357 AUD
Retailer 22$1,464 AUD
Retailer 3$1,658 AUD
Retailer 23$1,916 AUD
Retailer 8$2,144 AUD
Retailer 12$2,157 AUD
Retailer 5$2,176 AUD
Retailer 6$2,293 AUD
Retailer 19$2,381 AUD
Retailer 11$2,514 AUD
Retailer 10$2,553 AUD
Do Amore Diamonds$3,871 AUD

29 data points across 23 retailers

29 retailers$524 AUD to $3,871 AUD

Retailer 1
-
$349 AUD
Price last confirmed 29 days ago
A
Retailer 2
-
$524 AUD
View
Final sale: no returns
Retailer 3
-
$590 AUD
View
Price last confirmed 37 days ago
Retailer 4
-
$661 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$704 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$704 AUD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$707 AUD
View
Retailer 8
-
$723 AUD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$786 AUD
View
A
Retailer 10
-
$843 AUD
View
A
Retailer 11
-
$863 AUD
View
B+
Retailer 12
-
$966 AUD
View
B+
Retailer 13
-
$1,034 AUD
View
A
Retailer 14
-
$1,051 AUD
View
B+
Retailer 15
-
$1,341 AUD
View
B+
Retailer 16
-
$1,357 AUD
View
B+
Retailer 17
-
$1,464 AUD
View
B+
Retailer 18
-
$1,658 AUD
View
B+
Retailer 19
-
$1,916 AUD
View
B
Retailer 20
-
$2,144 AUD
View
Retailer 21
-
$2,157 AUD
View
Price last confirmed 9 days ago
B+
Retailer 22
-
$2,176 AUD
View
B
Retailer 23
-
$2,293 AUD
View
B
Retailer 24
-
$2,381 AUD
View
Retailer 25
-
$2,501 AUD
View
Price last confirmed 27 days ago
B
Retailer 26
-
$2,514 AUD
View
B
Retailer 27
-
$2,553 AUD
View
Retailer 28
-
$2,598 AUD
View
Price last confirmed 37 days ago
Most Expensive
B
Do Amore Diamonds
27-090EA091C · Nov 6
$3,871 AUD
$2,710 USD
View
28 more retailers have this diamond
Prices start from $524 AUDSave up to $3,347 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
1.20ct Marquise
$524 AUD