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Princess|Lab Grown|IGI

1.56ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG687538154

Shape and cutting style on the report: Princess cut

Certificate IGI LG687538154

Diamond specifications and retailer prices

From $431 NZD
$242 USD
As of October 30, 2026
Save $1,933 NZD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,364 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.56ct lab-grown princess diamond

This 1.56ct lab-grown princess 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 LG687538154 or 687538154. Listed at 18 retailers as of October 30, 2026, with prices from $431 to $2,364, a $1,933 spread on the same certified stone. Reve Diamonds lists it at $2,364. 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

1.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687538154
Dimensions6.31 × 6.24 × 4.52 mm
L/W Ratio1.01
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
6.31 mm6.24 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687538154
Side View
Table 70.0%Crown 45.3°Girdle: MediumPavilion 38.5°Culet: NoneDepth 72.4%

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 30
Current: $1,011 NZD|Low: $338 NZD|High: $2,364 NZD|Avg: $1,206 NZD|+5.4%
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
Reve Diamonds
October 30, 2026
Retailer 4$431 NZD
Retailer 9$481 NZD
Retailer 12$500 NZD
Retailer 6$534 NZD
Retailer 16$534 NZD
Retailer 8$880 NZD
Retailer 2$901 NZD
Retailer 14$985 NZD
Retailer 10$1,004 NZD
Retailer 1$1,011 NZD
Retailer 15$1,403 NZD
Retailer 13$1,638 NZD
Retailer 3$1,718 NZD
Retailer 5$1,811 NZD
Retailer 7$1,976 NZD
Retailer 11$2,153 NZD
Reve Diamonds$2,364 NZD

43 data points across 17 retailers

18 retailers$431 NZD to $2,364 NZD

A
Cheapest Retailer
-
$431 NZD
$242 USD
A
Retailer 2
-
$481 NZD
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$500 NZD
$281 USD
View
Retailer 4
-
$523 NZD
$294 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$534 NZD
$300 USD
View
A
Retailer 6
-
$534 NZD
$300 USD
View
B+
Retailer 7
-
$880 NZD
$494 USD
View
B+
Retailer 8
-
$901 NZD
$506 USD
View
B+
Retailer 9
-
$985 NZD
$553 USD
View
B+
Retailer 10
-
$1,004 NZD
€537 EUR
View
B+
Retailer 11
-
$1,011 NZD
£447 GBP
View
B
Retailer 12
-
$1,403 NZD
$788 USD
View
B
Retailer 13
-
$1,638 NZD
$920 USD
View
B
Retailer 14
-
$1,718 NZD
$965 USD
View
B
Retailer 15
-
$1,811 NZD
$1,017 USD
View
B
Retailer 16
-
$1,976 NZD
$1,110 USD
View
B
Retailer 17
-
$2,153 NZD
£952 GBP
View
Most Expensive
B
Reve Diamonds
51455529F · Oct 30
$2,364 NZD
$1,328 USD
View
17 more retailers have this diamond
Prices start from $431 NZDSave up to $1,933 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
1.56ct Princess
$431 NZD