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Marquise|Lab Grown|IGI

1.81ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG818654393

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818654393

Diamond specifications and retailer prices

From $2,257 AUD
$1,582 USD
As of November 2, 2026
Save $5,295 AUD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,553 AUD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.81ct lab-grown marquise diamond

This 1.81ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654393 or 818654393. Listed at 14 retailers as of November 2, 2026, with prices from $2,257 to $7,553, a $5,295 spread on the same certified stone. With Clarity lists it at $7,553. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654393
Dimensions12.71 × 6.37 × 3.96 mm
L/W Ratio2.00
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
12.71 mm6.37 mm1.81 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654393
Side View
Table 60.0%Crown 33.7°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,861 AUD|Low: $2,156 AUD|High: $7,401 AUD|Avg: $4,523 AUD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
November 2, 2026
Retailer 13$2,257 AUD
Retailer 4$2,411 AUD
Retailer 2$2,426 AUD
Retailer 12$2,855 AUD
Retailer 1$2,861 AUD
Retailer 11$2,975 AUD
Retailer 9$3,175 AUD
Retailer 10$4,466 AUD
Retailer 3$5,114 AUD
Retailer 6$6,335 AUD
Retailer 8$6,335 AUD
Retailer 5$6,908 AUD
Retailer 7$7,070 AUD
With Clarity$7,401 AUD

41 data points across 14 retailers

14 retailers$2,257 AUD to $7,553 AUD

A
Cheapest Retailer
-
$2,257 AUD
$1,582 USD
A
Retailer 2
-
$2,411 AUD
HK$13,200 HKD
View
A
Retailer 3
-
$2,426 AUD
$1,700 USD
View
A
Retailer 4
-
$2,855 AUD
View
A
Retailer 5
-
$2,861 AUD
£1,579 GBP
View
B+
Retailer 6
-
$2,975 AUD
$2,085 USD
View
B+
Retailer 7
-
$3,175 AUD
€2,119 EUR
View
B+
Retailer 8
-
$4,466 AUD
$3,130 USD
View
Retailer 9
-
$5,114 AUD
$3,584 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$6,335 AUD
£3,496 GBP
View
B
Retailer 11
-
$6,335 AUD
$4,440 USD
View
B
Retailer 12
-
$6,908 AUD
$4,841 USD
View
B
Retailer 13
-
$7,070 AUD
View
Most Expensive
B
With Clarity
818654393 · Nov 2
$7,553 AUD
$5,293 USD
View
13 more retailers have this diamond
Prices start from $2,257 AUDSave up to $5,295 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
1.81ct Marquise
$2,257 AUD