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1.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG826640334

Shape and cutting style on the report: Round brilliant

Certificate IGI LG826640334

Diamond specifications and retailer prices

From $932 NZD
A$808 AUD
As of October 29, 2026
16 retailers carry this diamond
Most expensive: $2,109 NZD at Reve Diamonds · As of October 21, 2026
View at Reve Diamonds

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 top-tier cut grade and certified by IGI LG826640334 or 826640334. Listed at 16 retailers as of October 29, 2026. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826640334
Dimensions7.37 × 7.31 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.37 mm7.31 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826640334
Side View
Table 53.0%Crown 33.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $392 NZD|Low: $282 NZD|High: $2,109 NZD|Avg: $1,026 NZD|+39.0%
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
Reve Diamonds
October 21, 2026
Retailer 1$392 NZD
Retailer 12$408 NZD
Retailer 8$725 NZD
Retailer 3$742 NZD
Retailer 6$755 NZD
Retailer 2$759 NZD
Retailer 7$764 NZD
Retailer 5$932 NZD
Retailer 11$1,148 NZD
Retailer 9$1,304 NZD
Retailer 13$1,499 NZD
Retailer 4$1,544 NZD
Retailer 10$2,053 NZD
Reve Diamonds$2,109 NZD

34 data points across 14 retailers

16 retailers

Retailer 1
-
$353 NZD
$199 USD
Price last confirmed 10 days ago
Retailer 2
-
$408 NZD
$230 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$436 NZD
$246 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$436 NZD
$246 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$742 NZD
$418 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$755 NZD
£335 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$759 NZD
$428 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$764 NZD
£339 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$932 NZD
A$808 AUD
View
Retailer 10
-
$1,148 NZD
$647 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,304 NZD
$735 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$1,403 NZD
$791 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$1,499 NZD
$845 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$1,544 NZD
$870 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$2,053 NZD
£911 GBP
View
Price last confirmed 9 days ago
Most Expensive
Reve Diamonds
BAF1ED542 · Oct 21
$2,109 NZD
$1,189 USD
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from $932 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.

B+
1.50ct Round
$932 NZD