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1.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG749570657

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749570657

Diamond specifications and retailer prices

From $417 NZD
$234 USD
As of October 29, 2026
Save $1,901 NZD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,318 NZD at Reve Diamonds · As of October 30, 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 LG749570657 or 749570657. Listed at 22 retailers as of October 29, 2026, with prices from $417 to $2,318, a $1,901 spread on the same certified stone. Reve Diamonds lists it at $2,318. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749570657
Dimensions7.35 × 7.29 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.35 mm7.29 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749570657
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.0%

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: Oct 29
Current: $970 NZD|Low: $397 NZD|High: $2,318 NZD|Avg: $1,053 NZD|+6.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
October 30, 2026
Retailer 7$417 NZD
Retailer 11$466 NZD
Retailer 15$483 NZD
Retailer 10$511 NZD
Retailer 4$516 NZD
Retailer 17$767 NZD
Retailer 5$874 NZD
Retailer 18$895 NZD
Retailer 12$897 NZD
Retailer 2$963 NZD
Retailer 1$970 NZD
Retailer 16$1,028 NZD
Retailer 14$1,350 NZD
Retailer 9$1,353 NZD
Retailer 8$1,659 NZD
Retailer 6$1,753 NZD
Retailer 3$1,923 NZD
Retailer 13$2,080 NZD
Reve Diamonds$2,318 NZD

38 data points across 19 retailers

22 retailers$417 NZD to $2,318 NZD

A
Cheapest Retailer
-
$417 NZD
$234 USD
A
Retailer 2
-
$466 NZD
$262 USD
View
Final sale: no returns
A
Retailer 3
-
$483 NZD
$271 USD
View
Retailer 4
-
$511 NZD
$287 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$516 NZD
$290 USD
View
A
Retailer 6
-
$767 NZD
$431 USD
View
B+
Retailer 7
-
$874 NZD
$491 USD
View
Retailer 8
-
$895 NZD
£396 GBP
View
Price last confirmed 13 days ago
A
Retailer 9
-
$897 NZD
€480 EUR
View
B+
Retailer 10
-
$963 NZD
$541 USD
View
B+
Retailer 11
-
$970 NZD
£429 GBP
View
B+
Retailer 12
-
$1,028 NZD
A$888 AUD
View
B+
Retailer 13
-
$1,350 NZD
$758 USD
View
B
Retailer 14
-
$1,353 NZD
$760 USD
View
Retailer 15
-
$1,645 NZD
$924 USD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$1,659 NZD
$932 USD
View
Retailer 17
-
$1,665 NZD
$935 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
$1,753 NZD
$984 USD
View
B
Retailer 19
-
$1,834 NZD
$1,030 USD
View
Retailer 20
-
$1,923 NZD
$1,080 USD
View
Price last confirmed 8 days ago
B
Retailer 21
-
$2,080 NZD
£920 GBP
View
Most Expensive
B
Reve Diamonds
A2967E34E · Oct 30
$2,318 NZD
$1,302 USD
View
21 more retailers have this diamond
Prices start from $417 NZDSave up to $1,901 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
$417 NZD