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Princess|Lab Grown|GCAL

3.00ct H SI1 Princess Lab Grown Diamond

EX • H/SI1 • GCAL 331010276

Shape and cutting style on the report: Princess

Certificate GCAL 331010276

Diamond specifications and retailer prices

From £296 GBP
As of November 6, 2026
Save £1,263 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,560 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 3ct lab-grown princess diamond

This 3ct lab-grown princess sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 331010276. Listed at 13 retailers as of November 4, 2026, with prices from £296 to £1,560, a £1,263 spread on the same certified stone. Riddles Jewelry lists it at £1,560. 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

3.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 331010276
Dimensions7.79 × 7.63 × 5.50 mm
L/W Ratio1.02
Culet sizeNone
Top View
7.79 mm7.63 mm3.00 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 331010276
Side View
Table 67.0%Crown 43.5°Girdle: THK-VTKPavilion 37.4°Culet: NoneDepth 72.0%

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: Nov 6
Current: £1,259 GBP|Low: £265 GBP|High: £1,560 GBP|Avg: £915 GBP|+8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Riddles Jewelry
November 6, 2026
Retailer 7£296 GBP
Retailer 9£332 GBP
Retailer 6£367 GBP
Retailer 10£544 GBP
Retailer 5£602 GBP
Retailer 4£1,125 GBP
Retailer 1£1,259 GBP
Retailer 8£1,303 GBP
Retailer 2£1,415 GBP
Retailer 3£1,484 GBP
Riddles Jewelry£1,560 GBP

34 data points across 11 retailers

13 retailers£296 GBP to £1,560 GBP

Retailer 1
-
£276 GBP
Price last confirmed 45 days ago
A
Retailer 2
-
£296 GBP
View
A
Retailer 3
-
£332 GBP
View
Final sale: no returns
Retailer 4
-
£337 GBP
View
Price last confirmed 44 days ago
A
Retailer 5
-
£367 GBP
View
B+
Retailer 6
-
£544 GBP
View
A
Retailer 7
-
£602 GBP
View
B+
Retailer 8
-
£1,125 GBP
View
B+
Retailer 9
-
£1,259 GBP
View
B+
Retailer 10
-
£1,303 GBP
View
B
Retailer 11
-
£1,415 GBP
View
B+
Retailer 12
-
£1,484 GBP
View
Most Expensive
B
Riddles Jewelry
1966654840 · Nov 4
£1,560 GBP
$2,099 USD
View
12 more retailers have this diamond
Prices start from £296 GBPSave up to £1,263 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
3.00ct Princess
£296 GBP