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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 $344 AUD
$242 USD
As of October 30, 2026
Save $1,546 AUD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,890 AUD 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 $344 to $1,890, a $1,546 spread on the same certified stone. Reve Diamonds lists it at $1,890. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $808 AUD|Low: $270 AUD|High: $1,890 AUD|Avg: $964 AUD|+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$344 AUD
Retailer 9$384 AUD
Retailer 12$400 AUD
Retailer 6$427 AUD
Retailer 16$427 AUD
Retailer 8$703 AUD
Retailer 2$720 AUD
Retailer 14$787 AUD
Retailer 10$803 AUD
Retailer 1$808 AUD
Retailer 15$1,122 AUD
Retailer 13$1,310 AUD
Retailer 3$1,374 AUD
Retailer 5$1,447 AUD
Retailer 7$1,580 AUD
Retailer 11$1,721 AUD
Reve Diamonds$1,890 AUD

43 data points across 17 retailers

18 retailers$344 AUD to $1,890 AUD

A
Cheapest Retailer
-
$344 AUD
$242 USD
A
Retailer 2
-
$384 AUD
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$400 AUD
$281 USD
View
Retailer 4
-
$418 AUD
$294 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$427 AUD
$300 USD
View
A
Retailer 6
-
$427 AUD
$300 USD
View
B+
Retailer 7
-
$703 AUD
$494 USD
View
B+
Retailer 8
-
$720 AUD
$506 USD
View
B+
Retailer 9
-
$787 AUD
$553 USD
View
B+
Retailer 10
-
$803 AUD
€537 EUR
View
B+
Retailer 11
-
$808 AUD
£447 GBP
View
B
Retailer 12
-
$1,122 AUD
$788 USD
View
B
Retailer 13
-
$1,310 AUD
$920 USD
View
B
Retailer 14
-
$1,374 AUD
$965 USD
View
B
Retailer 15
-
$1,447 AUD
$1,017 USD
View
B
Retailer 16
-
$1,580 AUD
$1,110 USD
View
B
Retailer 17
-
$1,721 AUD
£952 GBP
View
Most Expensive
B
Reve Diamonds
51455529F · Oct 30
$1,890 AUD
$1,328 USD
View
17 more retailers have this diamond
Prices start from $344 AUDSave up to $1,546 AUD

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
$344 AUD