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Round|Lab Grown|IGI

1.53ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG747578077

Shape and cutting style on the report: Round brilliant

Certificate IGI LG747578077

Diamond specifications and retailer prices

From $304 AUD
As of November 1, 2026
Save $1,996 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,300 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG747578077 or 747578077. Listed at 19 retailers as of November 1, 2026, with prices from $304 to $2,300, a $1,996 spread on the same certified stone. Brilliant Earth lists it at $2,300. 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747578077
Dimensions7.39 × 7.33 × 4.53 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
7.39 mm7.33 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747578077
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,514 AUD|Low: $291 AUD|High: $2,300 AUD|Avg: $843 AUD|-4.5%
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
November 6, 2026
Retailer 13$304 AUD
Retailer 3$377 AUD
Retailer 14$377 AUD
Retailer 2$454 AUD
Retailer 8$603 AUD
Retailer 6$647 AUD
Retailer 11$687 AUD
Retailer 10$740 AUD
Retailer 5$743 AUD
Retailer 7$1,084 AUD
Retailer 9$1,093 AUD
Retailer 4$1,213 AUD
Brilliant Earth$1,514 AUD
Retailer 12$1,520 AUD

44 data points across 14 retailers

19 retailers$304 AUD to $2,300 AUD

Retailer 1
-
$304 AUD
Price last confirmed 44 days ago
A
Retailer 2
-
$304 AUD
View
Retailer 3
-
$353 AUD
View
Price last confirmed 45 days ago
Retailer 4
-
$373 AUD
View
Price last confirmed 42 days ago
A
Retailer 5
-
$377 AUD
View
Retailer 6
-
$377 AUD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$454 AUD
View
A
Retailer 8
-
$603 AUD
View
A
Retailer 9
-
$647 AUD
View
B+
Retailer 10
-
$687 AUD
View
B+
Retailer 11
-
$740 AUD
View
B+
Retailer 12
-
$743 AUD
View
B+
Retailer 13
-
$990 AUD
View
B+
Retailer 14
-
$1,084 AUD
View
B
Retailer 15
-
$1,093 AUD
View
B
Retailer 16
-
$1,213 AUD
View
B
Retailer 17
-
$1,514 AUD
View
Retailer 18
-
$1,520 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21116661A · Nov 5
$2,300 AUD
$1,610 USD
View
18 more retailers have this diamond
Prices start from $304 AUDSave up to $1,996 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
1.53ct Round
$304 AUD