Princess|Lab Grown|GCAL

1.59ct F SI1 Princess Lab Grown Diamond

EX • F/SI1 • GCAL 321120134

Shape and cutting style on the report: Princess

Certificate GCAL 321120134

Diamond specifications and retailer prices

From $206 USD
As of November 2, 2026
Save $923 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,129 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.59ct lab-grown princess diamond

This 1.59ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 321120134. Listed at 12 retailers as of November 1, 2026, with prices from $206 to $1,129, a $923 spread on the same certified stone. MOH London lists it at $1,129. 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

1.59
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39°
Pavilion angle37°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 321120134
Dimensions6.46 × 6.24 × 4.36 mm
L/W Ratio1.04
Culet sizeNone
Top View
6.46 mm6.24 mm1.59 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 321120134
Side View
Table 69.0%Crown 39°Girdle: THK-THKPavilion 37°Culet: NoneDepth 69.8%

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: Nov 2
Current: $1,129 USD|Low: $184 USD|High: $1,135 USD|Avg: $607 USD|+6.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$206 USD
Retailer 10$231 USD
Retailer 9$255 USD
Retailer 11$380 USD
Retailer 7$394 USD
Retailer 5$458 USD
Retailer 2$682 USD
Retailer 6$798 USD
Retailer 12$906 USD
Retailer 8$942 USD
Retailer 3$1,078 USD
MOH London$1,129 USD

45 data points across 12 retailers

12 retailers$206 USD to $1,129 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$231 USD
View
Final sale: no returns
A
Retailer 3
-
$255 USD
View
B+
Retailer 4
-
$380 USD
View
A
Retailer 5
-
$394 USD
View
B+
Retailer 6
-
$458 USD
£361 GBP
View
B+
Retailer 7
-
$682 USD
£537 GBP
View
B
Retailer 8
-
$798 USD
CA$1,109 CAD
View
B
Retailer 9
-
$906 USD
View
B
Retailer 10
-
$942 USD
View
B
Retailer 11
-
$1,078 USD
View
Most Expensive
B
MOH London
321120134 · Nov 1
$1,129 USD
£889 GBP
View
11 more retailers have this diamond
Prices start from $206 USDSave up to $923 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
1.59ct Princess
$206 USD