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Marquise|Lab Grown|IGI

0.91ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG665423524

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG665423524

Diamond specifications and retailer prices

From $323 AUD
$227 USD
As of October 30, 2026
Save $1,869 AUD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,192 AUD at Brilliant Earth · As of October 25, 2026
View at Brilliant Earth

About this 0.91ct lab-grown marquise diamond

This 0.91ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665423524 or 665423524. Listed at 22 retailers as of October 25, 2026, with prices from $323 to $2,192, a $1,869 spread on the same certified stone. Brilliant Earth lists it at $2,192. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.91
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665423524
Dimensions9.89 × 5.15 × 3.25 mm
L/W Ratio1.92
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
9.89 mm5.15 mm0.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665423524
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 30
Current: $2,192 AUD|Low: $323 AUD|High: $2,192 AUD|Avg: $931 AUD
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 22
October 30, 2026
Retailer 2$323 AUD
Retailer 11$360 AUD
Retailer 20$376 AUD
Retailer 6$401 AUD
Retailer 17$401 AUD
Retailer 12$456 AUD
Retailer 13$493 AUD
Retailer 5$541 AUD
Retailer 3$668 AUD
Retailer 22$725 AUD
Retailer 8$726 AUD
Retailer 16$749 AUD
Retailer 9$814 AUD
Retailer 10$999 AUD
Retailer 14$1,083 AUD
Retailer 19$1,290 AUD
Retailer 4$1,294 AUD
Retailer 15$1,364 AUD
Retailer 21$1,545 AUD
Retailer 18$1,616 AUD
Retailer 7$1,823 AUD
Brilliant Earth$2,192 AUD

31 data points across 22 retailers

22 retailers$323 AUD to $2,192 AUD

A+
Cheapest Retailer
-
$323 AUD
$227 USD
A
Retailer 2
-
$360 AUD
$253 USD
View
Final sale: no returns
A
Retailer 3
-
$376 AUD
$264 USD
View
A
Retailer 4
-
$401 AUD
$282 USD
View
A
Retailer 5
-
$401 AUD
$282 USD
View
A
Retailer 6
-
$456 AUD
HK$2,500 HKD
View
A
Retailer 7
-
$493 AUD
£272 GBP
View
A
Retailer 8
-
$541 AUD
$380 USD
View
A
Retailer 9
-
$668 AUD
€447 EUR
View
A
Retailer 10
-
$725 AUD
ZAR 8,232 ZAR
View
A
Retailer 11
-
$726 AUD
$510 USD
View
A
Retailer 12
-
$749 AUD
£414 GBP
View
A
Retailer 13
-
$814 AUD
$572 USD
View
A
Retailer 14
-
$999 AUD
View
B+
Retailer 15
-
$1,083 AUD
SGD 1,028 SGD
View
B+
Retailer 16
-
$1,290 AUD
$906 USD
View
B+
Retailer 17
-
$1,294 AUD
$909 USD
View
B+
Retailer 18
-
$1,364 AUD
$958 USD
View
B+
Retailer 19
-
$1,545 AUD
$1,085 USD
View
B+
Retailer 20
-
$1,616 AUD
£894 GBP
View
B
Retailer 21
-
$1,823 AUD
$1,280 USD
View
Most Expensive
B
Brilliant Earth
18876069A · Oct 25
$2,192 AUD
$1,540 USD
View
21 more retailers have this diamond
Prices start from $323 AUDSave up to $1,869 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+
0.91ct Marquise
$323 AUD