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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG763660535

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763660535

Diamond specifications and retailer prices

From $281 AUD
As of November 5, 2026
Save $1,761 AUD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,043 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct 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 LG763660535 or 763660535. Listed at 17 retailers as of November 5, 2026, with prices from $281 to $2,043, a $1,761 spread on the same certified stone. Brilliant Earth lists it at $2,043. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763660535
Dimensions7.38 × 7.34 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.34 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763660535
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

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: Nov 5
Current: $2,043 AUD|Low: $270 AUD|High: $2,043 AUD|Avg: $845 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$281 AUD
Retailer 3$349 AUD
Retailer 10$471 AUD
Retailer 4$597 AUD
Retailer 2$624 AUD
Retailer 7$640 AUD
Retailer 11$769 AUD
Retailer 6$1,043 AUD
Retailer 8$1,124 AUD
Retailer 5$1,624 AUD
Brilliant Earth$2,043 AUD

42 data points across 11 retailers

17 retailers$281 AUD to $2,043 AUD

A
Cheapest Retailer
-
$281 AUD
A
Retailer 2
-
$326 AUD
View
Retailer 3
-
$349 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$349 AUD
View
B+
Retailer 5
-
$471 AUD
View
A
Retailer 6
-
$597 AUD
View
A
Retailer 7
-
$603 AUD
View
A
Retailer 8
-
$624 AUD
View
A
Retailer 9
-
$640 AUD
View
B+
Retailer 10
-
$769 AUD
View
B+
Retailer 11
-
$823 AUD
View
B+
Retailer 12
-
$1,043 AUD
View
B+
Retailer 13
-
$1,120 AUD
View
B+
Retailer 14
-
$1,124 AUD
View
B+
Retailer 15
-
$1,137 AUD
View
B
Retailer 16
-
$1,624 AUD
View
Most Expensive
B
Brilliant Earth
20762441A · Nov 5
$2,043 AUD
$1,430 USD
View
16 more retailers have this diamond
Prices start from $281 AUDSave up to $1,761 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 Round
$281 AUD