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Princess|Lab Grown|IGI

1.51ct E SI2 Princess Lab Grown Diamond

ID • E/SI2 • IGI LG670465310

Shape and cutting style on the report: Princess cut

Certificate IGI LG670465310

Diamond specifications and retailer prices

From $500 NZD
$281 USD
As of October 27, 2026
Save $2,099 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,600 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670465310 or 670465310. Listed at 16 retailers as of October 27, 2026, with prices from $500 to $2,600, a $2,099 spread on the same certified stone. Brilliant Earth lists it at $2,600. 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

1.51
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670465310
Dimensions6.23 × 6.21 × 4.44 mm
L/W Ratio1.00
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
6.23 mm6.21 mm1.51 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG670465310
Side View
Table 68.0%Crown 42.9°Girdle: MediumPavilion 37.8°Culet: NoneDepth 71.5%

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 27
Current: $2,600 NZD|Low: $475 NZD|High: $2,600 NZD|Avg: $1,193 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
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 7$500 NZD
Retailer 9$559 NZD
Retailer 13$580 NZD
Retailer 3$620 NZD
Retailer 8$620 NZD
Retailer 14$766 NZD
Retailer 10$798 NZD
Retailer 5$1,024 NZD
Retailer 2$1,045 NZD
Retailer 16$1,084 NZD
Retailer 11$1,086 NZD
Retailer 15$1,576 NZD
Retailer 4$1,667 NZD
Retailer 6$1,992 NZD
Retailer 12$2,487 NZD
Brilliant Earth$2,600 NZD

33 data points across 16 retailers

16 retailers$500 NZD to $2,600 NZD

A
Cheapest Retailer
-
$500 NZD
$281 USD
A
Retailer 2
-
$559 NZD
$314 USD
View
Final sale: no returns
A
Retailer 3
-
$580 NZD
$326 USD
View
A
Retailer 4
-
$620 NZD
$348 USD
View
A
Retailer 5
-
$620 NZD
$348 USD
View
B+
Retailer 6
-
$766 NZD
$430 USD
View
A
Retailer 7
-
$798 NZD
£353 GBP
View
B+
Retailer 8
-
$1,024 NZD
$575 USD
View
B+
Retailer 9
-
$1,045 NZD
€559 EUR
View
B+
Retailer 10
-
$1,084 NZD
$609 USD
View
B+
Retailer 11
-
$1,086 NZD
£480 GBP
View
B
Retailer 12
-
$1,576 NZD
$885 USD
View
B
Retailer 13
-
$1,667 NZD
$936 USD
View
B
Retailer 14
-
$1,992 NZD
$1,119 USD
View
B
Retailer 15
-
$2,487 NZD
£1,100 GBP
View
Most Expensive
B
Brilliant Earth
14744428A · Oct 28
$2,600 NZD
$1,460 USD
View
15 more retailers have this diamond
Prices start from $500 NZDSave up to $2,099 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
1.51ct Princess
$500 NZD