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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 $350 NZD
As of November 5, 2026
Save $2,193 NZD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,544 NZD 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 $350 to $2,544, a $2,193 spread on the same certified stone. Brilliant Earth lists it at $2,544. 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

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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: Nov 5
Current: $2,544 NZD|Low: $336 NZD|High: $2,544 NZD|Avg: $1,052 NZD
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$350 NZD
Retailer 3$434 NZD
Retailer 10$587 NZD
Retailer 4$744 NZD
Retailer 2$777 NZD
Retailer 7$797 NZD
Retailer 11$957 NZD
Retailer 6$1,299 NZD
Retailer 8$1,400 NZD
Retailer 5$2,023 NZD
Brilliant Earth$2,544 NZD

42 data points across 11 retailers

17 retailers$350 NZD to $2,544 NZD

A
Cheapest Retailer
-
$350 NZD
A
Retailer 2
-
$406 NZD
View
Retailer 3
-
$434 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$434 NZD
View
B+
Retailer 5
-
$587 NZD
View
A
Retailer 6
-
$744 NZD
View
A
Retailer 7
-
$751 NZD
View
A
Retailer 8
-
$777 NZD
View
A
Retailer 9
-
$797 NZD
View
B+
Retailer 10
-
$957 NZD
View
B+
Retailer 11
-
$1,025 NZD
View
B+
Retailer 12
-
$1,299 NZD
View
B+
Retailer 13
-
$1,395 NZD
View
B+
Retailer 14
-
$1,400 NZD
View
B+
Retailer 15
-
$1,416 NZD
View
B
Retailer 16
-
$2,023 NZD
View
Most Expensive
B
Brilliant Earth
20762441A · Nov 5
$2,544 NZD
$1,430 USD
View
16 more retailers have this diamond
Prices start from $350 NZDSave up to $2,193 NZD

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
$350 NZD