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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

GD • E/SI1 • IGI LG772629927

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772629927

Diamond specifications and retailer prices

From $363 NZD
$204 USD
As of October 29, 2026
Save $2,165 NZD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,528 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 standard cut grade and certified by IGI LG772629927 or 772629927. Listed at 16 retailers as of October 29, 2026, with prices from $363 to $2,528, a $2,165 spread on the same certified stone. Brilliant Earth lists it at $2,528. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772629927
Dimensions7.07 × 7.15 × 4.75 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
7.07 mm7.15 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772629927
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 42.9°Culet: NoneDepth 66.7%

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: Oct 29
Current: $2,528 NZD|Low: $349 NZD|High: $2,528 NZD|Avg: $990 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11$363 NZD
Retailer 13$408 NZD
Retailer 4$422 NZD
Retailer 12$450 NZD
Retailer 8$752 NZD
Retailer 2$781 NZD
Retailer 6$828 NZD
Retailer 3$906 NZD
Retailer 10$1,125 NZD
Retailer 9$1,318 NZD
Retailer 5$1,451 NZD
Retailer 7$2,121 NZD
Brilliant Earth$2,528 NZD

44 data points across 13 retailers

16 retailers$363 NZD to $2,528 NZD

A
Cheapest Retailer
-
$363 NZD
$204 USD
B+
Retailer 2
-
$408 NZD
$229 USD
View
Final sale: no returns
B+
Retailer 3
-
$422 NZD
$237 USD
View
B+
Retailer 4
-
$450 NZD
$253 USD
View
B+
Retailer 5
-
$450 NZD
$253 USD
View
B
Retailer 6
-
$609 NZD
$342 USD
View
B+
Retailer 7
-
$748 NZD
$420 USD
View
B+
Retailer 8
-
$752 NZD
€402 EUR
View
B+
Retailer 9
-
$781 NZD
£345 GBP
View
B+
Retailer 10
-
$828 NZD
£366 GBP
View
B+
Retailer 11
-
$906 NZD
$509 USD
View
B
Retailer 12
-
$1,125 NZD
$632 USD
View
B
Retailer 13
-
$1,318 NZD
$740 USD
View
B
Retailer 14
-
$1,451 NZD
$815 USD
View
B
Retailer 15
-
$2,121 NZD
£938 GBP
View
Most Expensive
C
Brilliant Earth
21312837A · Oct 29
$2,528 NZD
$1,420 USD
View
15 more retailers have this diamond
Prices start from $363 NZDSave up to $2,165 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
$363 NZD