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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

GD • E/SI1 • IGI LG772629927

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772629927

Diamond specifications and retailer prices

From $290 AUD
$204 USD
As of October 29, 2026
Save $1,731 AUD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,021 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 standard cut grade and certified by IGI LG772629927 or 772629927. Listed at 16 retailers as of October 29, 2026, with prices from $290 to $2,021, a $1,731 spread on the same certified stone. Brilliant Earth lists it at $2,021. 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

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772629927
Dimensions7.07 × 7.15 × 4.75 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
7.07 mm7.15 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772629927
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 42.9°Culet: NoneDepth 66.7%

Caratlytics Score

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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: $2,021 AUD|Low: $279 AUD|High: $2,021 AUD|Avg: $791 AUD
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
October 30, 2026
Retailer 11$290 AUD
Retailer 13$326 AUD
Retailer 4$337 AUD
Retailer 12$360 AUD
Retailer 8$601 AUD
Retailer 2$624 AUD
Retailer 6$662 AUD
Retailer 3$725 AUD
Retailer 10$900 AUD
Retailer 9$1,053 AUD
Retailer 5$1,160 AUD
Retailer 7$1,696 AUD
Brilliant Earth$2,021 AUD

44 data points across 13 retailers

16 retailers$290 AUD to $2,021 AUD

A
Cheapest Retailer
-
$290 AUD
$204 USD
B+
Retailer 2
-
$326 AUD
$229 USD
View
Final sale: no returns
B+
Retailer 3
-
$337 AUD
$237 USD
View
B+
Retailer 4
-
$360 AUD
$253 USD
View
B+
Retailer 5
-
$360 AUD
$253 USD
View
B
Retailer 6
-
$487 AUD
$342 USD
View
B+
Retailer 7
-
$598 AUD
$420 USD
View
B+
Retailer 8
-
$601 AUD
€402 EUR
View
B+
Retailer 9
-
$624 AUD
£345 GBP
View
B+
Retailer 10
-
$662 AUD
£366 GBP
View
B+
Retailer 11
-
$725 AUD
$509 USD
View
B
Retailer 12
-
$900 AUD
$632 USD
View
B
Retailer 13
-
$1,053 AUD
$740 USD
View
B
Retailer 14
-
$1,160 AUD
$815 USD
View
B
Retailer 15
-
$1,696 AUD
£938 GBP
View
Most Expensive
C
Brilliant Earth
21312837A · Oct 29
$2,021 AUD
$1,420 USD
View
15 more retailers have this diamond
Prices start from $290 AUDSave up to $1,731 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
$290 AUD