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Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

VG • E/FL • IGI LG823695036

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823695036

Diamond specifications and retailer prices

From $1,145 AUD
$804 USD
As of October 30, 2026
Save $4,336 AUD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,481 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG823695036 or 823695036. Listed at 21 retailers as of October 30, 2026, with prices from $1,145 to $5,481, a $4,336 spread on the same certified stone. Brilliant Earth lists it at $5,481. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695036
Dimensions11.42 × 6.02 × 3.79 mm
L/W Ratio1.90
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
11.42 mm6.02 mm1.51 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695036
Side View
Table 59.0%Crown 35.2°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 63.0%

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: Oct 30
Current: $5,481 AUD|Low: $1,145 AUD|High: $5,861 AUD|Avg: $3,068 AUD|-0.3%
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 7$1,145 AUD
Retailer 3$1,246 AUD
Retailer 9$1,281 AUD
Retailer 19$1,328 AUD
Retailer 8$1,549 AUD
Retailer 15$1,580 AUD
Retailer 4$1,691 AUD
Retailer 2$2,038 AUD
Retailer 17$2,108 AUD
Retailer 18$2,141 AUD
Retailer 14$2,441 AUD
Retailer 11$3,158 AUD
Retailer 20$3,734 AUD
Retailer 6$4,122 AUD
Retailer 16$4,157 AUD
Retailer 10$4,444 AUD
Retailer 12$4,462 AUD
Retailer 5$4,594 AUD
Retailer 13$5,004 AUD
Brilliant Earth$5,481 AUD

34 data points across 20 retailers

21 retailers$1,145 AUD to $5,481 AUD

A
Cheapest Retailer
-
$1,145 AUD
$804 USD
A
Retailer 2
-
$1,246 AUD
$875 USD
View
A
Retailer 3
-
$1,281 AUD
$900 USD
View
Final sale: no returns
A
Retailer 4
-
$1,328 AUD
$933 USD
View
Retailer 5
-
$1,352 AUD
$950 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,549 AUD
HK$8,500 HKD
View
A
Retailer 7
-
$1,580 AUD
$1,110 USD
View
A
Retailer 8
-
$1,691 AUD
$1,188 USD
View
A
Retailer 9
-
$2,038 AUD
£1,127 GBP
View
A
Retailer 10
-
$2,108 AUD
€1,410 EUR
View
A
Retailer 11
-
$2,141 AUD
$1,504 USD
View
B+
Retailer 12
-
$2,441 AUD
ZAR 27,702 ZAR
View
B+
Retailer 13
-
$3,158 AUD
$2,218 USD
View
B
Retailer 14
-
$3,734 AUD
$2,623 USD
View
B
Retailer 15
-
$4,122 AUD
£2,280 GBP
View
B
Retailer 16
-
$4,157 AUD
$2,920 USD
View
B
Retailer 17
-
$4,444 AUD
$3,122 USD
View
B
Retailer 18
-
$4,462 AUD
SGD 4,236 SGD
View
B
Retailer 19
-
$4,594 AUD
$3,227 USD
View
B
Retailer 20
-
$5,004 AUD
£2,768 GBP
View
Most Expensive
B
Brilliant Earth
21309804A · Oct 30
$5,481 AUD
$3,850 USD
View
20 more retailers have this diamond
Prices start from $1,145 AUDSave up to $4,336 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
1.51ct Marquise
$1,145 AUD