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1.50ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG520297333

Shape and cutting style on the report: Round brilliant

Certificate IGI LG520297333

Diamond specifications and retailer prices

From $577 NZD
$325 USD
As of November 1, 2026
Save $4,551 NZD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,128 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 LG520297333 or 520297333. Listed at 18 retailers as of October 31, 2026, with prices from $577 to $5,128, a $4,551 spread on the same certified stone. Do Amore Diamonds lists it at $5,128. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520297333
Dimensions7.39 × 7.49 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.39 mm7.49 mm1.50 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520297333
Side View
Table 62.5%Crown 33°Girdle: MediumPavilion 41.4°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,128 NZD|Low: $577 NZD|High: $5,128 NZD|Avg: $1,668 NZD|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 17$577 NZD
Retailer 14$669 NZD
Retailer 12$710 NZD
Retailer 4$715 NZD
Retailer 13$715 NZD
Retailer 18$818 NZD
Retailer 6$985 NZD
Retailer 7$1,180 NZD
Retailer 9$1,230 NZD
Retailer 11$1,275 NZD
Retailer 15$1,304 NZD
Retailer 10$1,425 NZD
Retailer 16$2,099 NZD
Retailer 8$2,150 NZD
Retailer 5$2,539 NZD
Retailer 3$2,818 NZD
Retailer 2$3,085 NZD
Do Amore Diamonds$5,128 NZD

15 data points across 18 retailers

18 retailers$577 NZD to $5,128 NZD

A
Cheapest Retailer
-
$577 NZD
$325 USD
A
Retailer 2
-
$669 NZD
$377 USD
View
B+
Retailer 3
-
$710 NZD
$400 USD
View
Retailer 4
-
$715 NZD
$403 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$715 NZD
$403 USD
View
A
Retailer 6
-
$818 NZD
$461 USD
View
A
Retailer 7
-
$985 NZD
$555 USD
View
A
Retailer 8
-
$1,180 NZD
$665 USD
View
A
Retailer 9
-
$1,230 NZD
$693 USD
View
A
Retailer 10
-
$1,275 NZD
£566 GBP
View
A
Retailer 11
-
$1,304 NZD
$735 USD
View
A
Retailer 12
-
$1,425 NZD
$803 USD
View
A
Retailer 13
-
$2,099 NZD
$1,183 USD
View
A
Retailer 14
-
$2,150 NZD
$1,212 USD
View
B+
Retailer 15
-
$2,539 NZD
$1,431 USD
View
B+
Retailer 16
-
$2,818 NZD
$1,588 USD
View
B+
Retailer 17
-
$3,085 NZD
£1,369 GBP
View
Most Expensive
B
Do Amore Diamonds
27-464651565 · Oct 31
$5,128 NZD
$2,890 USD
View
17 more retailers have this diamond
Prices start from $577 NZDSave up to $4,551 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
$577 NZD