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Marquise|Lab Grown|IGI

1.29ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG800679398

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800679398

Diamond specifications and retailer prices

From $731 AUD
As of November 4, 2026
Save $2,740 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,664 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.29ct lab-grown marquise diamond

This 1.29ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800679398 or 800679398. Listed at 13 retailers as of November 4, 2026, with a 375% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679398
Dimensions11.39 × 5.72 × 3.52 mm
L/W Ratio1.99
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
11.39 mm5.72 mm1.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679398
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.5%

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: Nov 4
Current: $3,664 AUD|Low: $731 AUD|High: $4,943 AUD|Avg: $2,419 AUD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 8$731 AUD
Retailer 10$900 AUD
Retailer 6$1,136 AUD
Retailer 2$1,283 AUD
Retailer 12$1,458 AUD
Retailer 4$1,481 AUD
Retailer 3$1,661 AUD
Retailer 5$1,697 AUD
Retailer 13$2,106 AUD
Retailer 11$2,448 AUD
Retailer 7$2,481 AUD
Retailer 9$3,471 AUD
Rare Carat$3,664 AUD

41 data points across 13 retailers

13 retailers$731 AUD to $3,471 AUD

A
Cheapest Retailer
-
$731 AUD
A
Retailer 2
-
$900 AUD
View
A
Retailer 3
-
$1,136 AUD
View
A
Retailer 4
-
$1,283 AUD
View
A
Retailer 5
-
$1,458 AUD
View
Retailer 6
-
$1,481 AUD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,661 AUD
View
B+
Retailer 8
-
$1,697 AUD
View
B+
Retailer 9
-
$2,106 AUD
View
B+
Retailer 10
-
$2,448 AUD
View
B+
Retailer 11
-
$2,481 AUD
View
B
Retailer 12
-
$3,471 AUD
View
Most Expensive
Rare Carat
6321-U · Oct 21
$3,664 AUD
$2,565 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from $731 AUDSave up to $2,740 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
1.29ct Marquise
$731 AUD