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Princess|Lab Grown|GCAL

1.27ct F SI1 Princess Lab Grown Diamond

EX • F/SI1 • GCAL 330900119

Shape and cutting style on the report: Princess

Certificate GCAL 330900119

Diamond specifications and retailer prices

From £150 GBP
As of November 6, 2026
Save £1,292 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,442 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.27ct lab-grown princess diamond

This 1.27ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 330900119. Listed at 17 retailers as of November 6, 2026, with prices from £150 to £1,442, a £1,292 spread on the same certified stone. Do Amore Diamonds lists it at £1,442. 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

1.27
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43°
Pavilion angle38.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 330900119
Dimensions5.93 × 5.86 × 4.16 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.93 mm5.86 mm1.27 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 330900119
Side View
Table 71.0%Crown 43°Girdle: STK-STKPavilion 38.2°Culet: NoneDepth 71.0%

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 6
Current: £1,442 GBP|Low: £134 GBP|High: £1,442 GBP|Avg: £492 GBP|+4.9%
Do Amore Diamonds
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
November 6, 2026
Retailer 6£150 GBP
Retailer 14£168 GBP
Retailer 13£186 GBP
Retailer 11£264 GBP
Retailer 3£276 GBP
Retailer 2£302 GBP
Retailer 8£330 GBP
Retailer 7£493 GBP
Retailer 10£580 GBP
Retailer 4£660 GBP
Retailer 12£684 GBP
Retailer 5£788 GBP
Retailer 9£823 GBP
Do Amore Diamonds£1,442 GBP

44 data points across 14 retailers

17 retailers£150 GBP to £1,442 GBP

Retailer 1
-
£140 GBP
Price last confirmed 46 days ago
A
Retailer 2
-
£150 GBP
View
Retailer 3
-
£162 GBP
View
Price last confirmed 45 days ago
A
Retailer 4
-
£168 GBP
View
Final sale: no returns
Retailer 5
-
£171 GBP
View
Price last confirmed 45 days ago
A
Retailer 6
-
£186 GBP
View
A
Retailer 7
-
£264 GBP
View
B+
Retailer 8
-
£276 GBP
View
A
Retailer 9
-
£302 GBP
View
A
Retailer 10
-
£330 GBP
View
B+
Retailer 11
-
£493 GBP
View
B
Retailer 12
-
£580 GBP
View
B
Retailer 13
-
£660 GBP
View
B
Retailer 14
-
£684 GBP
View
B
Retailer 15
-
£788 GBP
View
B
Retailer 16
-
£823 GBP
View
Most Expensive
B
Do Amore Diamonds
27-6311B4584 · Nov 6
£1,442 GBP
$1,930 USD
View
16 more retailers have this diamond
Prices start from £150 GBPSave up to £1,292 GBP

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
1.27ct Princess
£150 GBP