CaratHunter
Plans
Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG776652956

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776652956

Diamond specifications and retailer prices

From $385 NZD
$216 USD
As of October 29, 2026
Save $1,831 NZD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,216 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 LG776652956 or 776652956. Listed at 20 retailers as of October 29, 2026, with prices from $385 to $2,216, a $1,831 spread on the same certified stone. Reve Diamonds lists it at $2,216. 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 angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776652956
Dimensions7.27 × 7.33 × 4.54 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
7.27 mm7.33 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776652956
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: Oct 29
Current: $825 NZD|Low: $369 NZD|High: $2,216 NZD|Avg: $1,009 NZD|+2.1%
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 17$385 NZD
Retailer 9$429 NZD
Retailer 3$447 NZD
Retailer 2$477 NZD
Retailer 7$477 NZD
Retailer 5$641 NZD
Retailer 4$757 NZD
Retailer 13$774 NZD
Retailer 1$825 NZD
Retailer 11$882 NZD
Retailer 8$929 NZD
Retailer 14$958 NZD
Retailer 16$1,237 NZD
Retailer 15$1,326 NZD
Retailer 6$1,533 NZD
Retailer 18$1,549 NZD
Retailer 10$1,627 NZD
Retailer 12$1,922 NZD
Reve Diamonds$2,216 NZD

40 data points across 19 retailers

20 retailers$385 NZD to $2,216 NZD

A
Cheapest Retailer
-
$385 NZD
$216 USD
A
Retailer 2
-
$429 NZD
$241 USD
View
Final sale: no returns
A
Retailer 3
-
$447 NZD
$251 USD
View
A
Retailer 4
-
$477 NZD
$268 USD
View
A
Retailer 5
-
$477 NZD
$268 USD
View
B+
Retailer 6
-
$641 NZD
$360 USD
View
A
Retailer 7
-
$757 NZD
$425 USD
View
A
Retailer 8
-
$774 NZD
€414 EUR
View
A
Retailer 9
-
$825 NZD
£365 GBP
View
A
Retailer 10
-
$882 NZD
£390 GBP
View
B+
Retailer 11
-
$929 NZD
$522 USD
View
B+
Retailer 12
-
$958 NZD
A$828 AUD
View
Retailer 13
-
$1,056 NZD
$593 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$1,237 NZD
$695 USD
View
B+
Retailer 15
-
$1,326 NZD
$745 USD
View
B
Retailer 16
-
$1,533 NZD
$861 USD
View
B
Retailer 17
-
$1,549 NZD
$870 USD
View
B
Retailer 18
-
$1,627 NZD
$914 USD
View
B
Retailer 19
-
$1,922 NZD
£850 GBP
View
Most Expensive
B
Reve Diamonds
DDFA18ECD · Oct 30
$2,216 NZD
$1,245 USD
View
19 more retailers have this diamond
Prices start from $385 NZDSave up to $1,831 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
$385 NZD