CaratHunter
Plans
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 $242 USD
As of October 27, 2026
Save $1,086 USD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,328 USD at Reve Diamonds · As of October 28, 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 27, 2026, with prices from $242 to $1,328, a $1,086 spread on the same certified stone. Reve Diamonds lists it at $1,328. 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
Color
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 27
Current: $567 USD|Low: $190 USD|High: $1,328 USD|Avg: $671 USD|+5.2%
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 29, 2026
Retailer 4$242 USD
Retailer 9$270 USD
Retailer 12$281 USD
Retailer 6$300 USD
Retailer 16$300 USD
Retailer 8$494 USD
Retailer 2$506 USD
Retailer 14$553 USD
Retailer 10$564 USD
Retailer 1$567 USD
Retailer 15$788 USD
Retailer 13$920 USD
Retailer 3$965 USD
Retailer 5$1,017 USD
Retailer 7$1,110 USD
Retailer 11$1,209 USD
Reve Diamonds$1,328 USD

43 data points across 17 retailers

18 retailers$242 USD to $1,328 USD

A
Cheapest Retailer
-
$242 USD
A
Retailer 2
-
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$281 USD
View
A
Retailer 4
-
$294 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
$300 USD
View
A
Retailer 6
-
$300 USD
View
B+
Retailer 7
-
$494 USD
View
B+
Retailer 8
-
$506 USD
View
B+
Retailer 9
-
$553 USD
View
B+
Retailer 10
-
$564 USD
€537 EUR
View
B+
Retailer 11
-
$567 USD
£447 GBP
View
B
Retailer 12
-
$788 USD
View
B
Retailer 13
-
$920 USD
View
B
Retailer 14
-
$965 USD
View
B
Retailer 15
-
$1,017 USD
View
B
Retailer 16
-
$1,110 USD
View
B
Retailer 17
-
$1,209 USD
£952 GBP
View
Most Expensive
B
Reve Diamonds
51455529F · Oct 28
$1,328 USD
View
17 more retailers have this diamond
Prices start from $242 USDSave up to $1,086 USD

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
$242 USD