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Marquise|Lab Grown|IGI

1.38ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG818689035

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818689035

Diamond specifications and retailer prices

From $377 AUD
$265 USD
As of November 1, 2026
Save $1,302 AUD (78%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,182 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.38ct lab-grown marquise diamond

This 1.38ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818689035 or 818689035. Listed at 26 retailers as of November 1, 2026, with a 345% 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

1.38
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818689035
Dimensions11.97 × 5.76 × 3.58 mm
L/W Ratio2.08
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
11.97 mm5.76 mm1.38 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818689035
Side View
Table 60.0%Crown 33.2°Girdle: MediumPavilion 40.6°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 1
Current: $723 AUD|Low: $320 AUD|High: $1,865 AUD|Avg: $945 AUD|+2.6%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 8$320 AUD
Retailer 4$377 AUD
Retailer 16$419 AUD
Retailer 14$697 AUD
Retailer 3$708 AUD
Retailer 1$723 AUD
Retailer 12$748 AUD
Retailer 10$792 AUD
Retailer 2$844 AUD
Retailer 15$1,022 AUD
Retailer 11$1,039 AUD
Retailer 7$1,345 AUD
Retailer 5$1,347 AUD
Retailer 13$1,409 AUD
Retailer 6$1,421 AUD
Retailer 9$1,680 AUD

39 data points across 16 retailers

26 retailers$377 AUD to $1,680 AUD

Retailer 1
-
$320 AUD
$225 USD
Price last confirmed 30 days ago
Retailer 2
-
$332 AUD
$233 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$377 AUD
$265 USD
View
Final sale: no returns
Retailer 4
-
$387 AUD
$272 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$409 AUD
$287 USD
View
Price last confirmed 34 days ago
Retailer 6
-
$411 AUD
$289 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$419 AUD
$294 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$419 AUD
$294 USD
View
A
Retailer 9
-
$697 AUD
€466 EUR
View
A
Retailer 10
-
$708 AUD
$497 USD
View
A
Retailer 11
-
$723 AUD
ZAR 8,208 ZAR
View
A
Retailer 12
-
$748 AUD
View
A
Retailer 13
-
$792 AUD
£438 GBP
View
A
Retailer 14
-
$844 AUD
$593 USD
View
B+
Retailer 15
-
$1,022 AUD
View
B+
Retailer 16
-
$1,039 AUD
$730 USD
View
B+
Retailer 17
-
$1,061 AUD
$745 USD
View
Retailer 18
-
$1,252 AUD
View
Price last confirmed 80 days ago
Retailer 19
-
$1,330 AUD
$934 USD
View
Price last confirmed 32 days ago
B+
Retailer 20
-
$1,345 AUD
$945 USD
View
B
Retailer 21
-
$1,347 AUD
$946 USD
View
B
Retailer 22
-
$1,347 AUD
$946 USD
View
B
Retailer 23
-
$1,409 AUD
$990 USD
View
B
Retailer 24
-
$1,421 AUD
$998 USD
View
B
Retailer 25
-
$1,680 AUD
£929 GBP
View
Most Expensive
Queensmith
LG818689035 · Oct 27
$3,182 AUD
£1,760 GBP
View
Price under review
25 more retailers have this diamond
Prices start from $377 AUDSave up to $1,302 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
1.38ct Marquise
$377 AUD