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Round|Lab Grown|IGI

1.45ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG756517000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756517000

Diamond specifications and retailer prices

From $323 AUD
$227 USD
As of October 29, 2026
Save $1,499 AUD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,822 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.45ct lab-grown round diamond

This 1.45ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG756517000 or 756517000. Listed at 19 retailers as of October 29, 2026, with prices from $323 to $1,822, a $1,499 spread on the same certified stone. Reve Diamonds lists it at $1,822. 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

1.45
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756517000
Dimensions7.28 × 7.32 × 4.43 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
7.28 mm7.32 mm1.45 ctE / SI1
OriginLab Grown
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756517000
Side View
Table 60.0%Crown 33.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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: $746 AUD|Low: $255 AUD|High: $1,822 AUD|Avg: $866 AUD|+7.3%
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
Reve Diamonds
October 30, 2026
Retailer 4$323 AUD
Retailer 9$360 AUD
Retailer 11$374 AUD
Retailer 14$400 AUD
Retailer 15$401 AUD
Retailer 2$682 AUD
Retailer 7$746 AUD
Retailer 1$746 AUD
Retailer 8$756 AUD
Retailer 13$757 AUD
Retailer 12$840 AUD
Retailer 3$1,097 AUD
Retailer 5$1,288 AUD
Retailer 10$1,607 AUD
Retailer 6$1,623 AUD
Reve Diamonds$1,822 AUD

42 data points across 16 retailers

19 retailers$323 AUD to $1,822 AUD

Retailer 1
-
$320 AUD
$225 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$323 AUD
$227 USD
View
A
Retailer 3
-
$360 AUD
$253 USD
View
Final sale: no returns
A
Retailer 4
-
$374 AUD
$263 USD
View
Retailer 5
-
$391 AUD
$275 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$400 AUD
$281 USD
View
B+
Retailer 7
-
$401 AUD
$282 USD
View
B+
Retailer 8
-
$682 AUD
$479 USD
View
B+
Retailer 9
-
$746 AUD
$524 USD
View
B+
Retailer 10
-
$746 AUD
£413 GBP
View
B+
Retailer 11
-
$756 AUD
€506 EUR
View
B+
Retailer 12
-
$757 AUD
$532 USD
View
B+
Retailer 13
-
$840 AUD
$590 USD
View
B
Retailer 14
-
$1,097 AUD
$771 USD
View
Retailer 15
-
$1,277 AUD
$897 USD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$1,288 AUD
$905 USD
View
B
Retailer 17
-
$1,607 AUD
£889 GBP
View
B
Retailer 18
-
$1,623 AUD
$1,140 USD
View
Most Expensive
C
Reve Diamonds
1D95EE906 · Oct 30
$1,822 AUD
$1,280 USD
View
18 more retailers have this diamond
Prices start from $323 AUDSave up to $1,499 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
1.45ct Round
$323 AUD