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1.50ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494167965

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494167965

Diamond specifications and retailer prices

From $490 NZD
$276 USD
As of November 1, 2026
Save $3,857 NZD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,347 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494167965 or 494167965. Listed at 17 retailers as of October 31, 2026, with prices from $490 to $4,347, a $3,857 spread on the same certified stone. Do Amore Diamonds lists it at $4,347. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167965
Dimensions7.35 × 7.42 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS Hearts and Arrows pattern viewable with H&A scope. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.35 mm7.42 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167965
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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 1
Current: $4,347 NZD|Low: $490 NZD|High: $4,347 NZD|Avg: $1,521 NZD
Do Amore Diamonds
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 17$490 NZD
Retailer 14$568 NZD
Retailer 5$607 NZD
Retailer 13$607 NZD
Retailer 12$710 NZD
Retailer 3$800 NZD
Retailer 11$887 NZD
Retailer 10$1,082 NZD
Retailer 15$1,203 NZD
Retailer 8$1,230 NZD
Retailer 9$1,425 NZD
Retailer 16$1,867 NZD
Retailer 7$2,150 NZD
Retailer 6$2,156 NZD
Retailer 4$2,446 NZD
Retailer 2$2,686 NZD
Do Amore Diamonds$4,347 NZD

16 data points across 17 retailers

17 retailers$490 NZD to $4,347 NZD

A
Cheapest Retailer
-
$490 NZD
$276 USD
A
Retailer 2
-
$568 NZD
$320 USD
View
Retailer 3
-
$607 NZD
$342 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$607 NZD
$342 USD
View
B+
Retailer 5
-
$710 NZD
$400 USD
View
A
Retailer 6
-
$800 NZD
$451 USD
View
A
Retailer 7
-
$887 NZD
$500 USD
View
A
Retailer 8
-
$1,082 NZD
£480 GBP
View
A
Retailer 9
-
$1,203 NZD
$678 USD
View
A
Retailer 10
-
$1,230 NZD
$693 USD
View
A
Retailer 11
-
$1,425 NZD
$803 USD
View
A
Retailer 12
-
$1,867 NZD
$1,052 USD
View
A
Retailer 13
-
$2,150 NZD
$1,212 USD
View
A
Retailer 14
-
$2,156 NZD
$1,215 USD
View
B+
Retailer 15
-
$2,446 NZD
$1,379 USD
View
B+
Retailer 16
-
$2,686 NZD
£1,192 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C114E6748 · Oct 31
$4,347 NZD
$2,450 USD
View
16 more retailers have this diamond
Prices start from $490 NZDSave up to $3,857 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
1.50ct Round
$490 NZD