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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG776652956

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776652956

Diamond specifications and retailer prices

From $307 AUD
$216 USD
As of October 29, 2026
Save $1,464 AUD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,772 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG776652956 or 776652956. Listed at 20 retailers as of October 29, 2026, with prices from $307 to $1,772, a $1,464 spread on the same certified stone. Reve Diamonds lists it at $1,772. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776652956
Dimensions7.27 × 7.33 × 4.54 mm
L/W Ratio1.01
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
7.27 mm7.33 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776652956
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: Oct 29
Current: $660 AUD|Low: $295 AUD|High: $1,772 AUD|Avg: $807 AUD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
October 30, 2026
Retailer 17$307 AUD
Retailer 9$343 AUD
Retailer 3$357 AUD
Retailer 2$381 AUD
Retailer 7$381 AUD
Retailer 5$512 AUD
Retailer 4$605 AUD
Retailer 13$619 AUD
Retailer 1$660 AUD
Retailer 11$705 AUD
Retailer 8$743 AUD
Retailer 14$766 AUD
Retailer 16$989 AUD
Retailer 15$1,060 AUD
Retailer 6$1,226 AUD
Retailer 18$1,238 AUD
Retailer 10$1,301 AUD
Retailer 12$1,537 AUD
Reve Diamonds$1,772 AUD

40 data points across 19 retailers

20 retailers$307 AUD to $1,772 AUD

A
Cheapest Retailer
-
$307 AUD
$216 USD
A
Retailer 2
-
$343 AUD
$241 USD
View
Final sale: no returns
A
Retailer 3
-
$357 AUD
$251 USD
View
A
Retailer 4
-
$381 AUD
$268 USD
View
A
Retailer 5
-
$381 AUD
$268 USD
View
B+
Retailer 6
-
$512 AUD
$360 USD
View
A
Retailer 7
-
$605 AUD
$425 USD
View
A
Retailer 8
-
$619 AUD
€414 EUR
View
A
Retailer 9
-
$660 AUD
£365 GBP
View
A
Retailer 10
-
$705 AUD
£390 GBP
View
B+
Retailer 11
-
$743 AUD
$522 USD
View
B+
Retailer 12
-
$766 AUD
View
Retailer 13
-
$844 AUD
$593 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$989 AUD
$695 USD
View
B+
Retailer 15
-
$1,060 AUD
$745 USD
View
B
Retailer 16
-
$1,226 AUD
$861 USD
View
B
Retailer 17
-
$1,238 AUD
$870 USD
View
B
Retailer 18
-
$1,301 AUD
$914 USD
View
B
Retailer 19
-
$1,537 AUD
£850 GBP
View
Most Expensive
B
Reve Diamonds
DDFA18ECD · Oct 30
$1,772 AUD
$1,245 USD
View
19 more retailers have this diamond
Prices start from $307 AUDSave up to $1,464 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
1.50ct Round
$307 AUD