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Princess|Lab Grown|GCAL

1.51ct G SI1 Princess Lab Grown Diamond

VG • G/SI1 • GCAL 321590009

Shape and cutting style on the report: Princess

Certificate GCAL 321590009

Diamond specifications and retailer prices

From £143 GBP
As of November 6, 2026
Save £1,231 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,375 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GCAL 321590009. Listed at 14 retailers as of November 6, 2026, with prices from £143 to £1,375, a £1,231 spread on the same certified stone. Do Amore Diamonds lists it at £1,375. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 321590009
Dimensions6.26 × 6.24 × 4.35 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.26 mm6.24 mm1.51 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 321590009
Side View
Table 67.0%Crown 41.5°Girdle: THK-THKPavilion 36.4°Culet: NoneDepth 69.8%

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: £1,375 GBP|Low: £127 GBP|High: £1,375 GBP|Avg: £470 GBP|+4.5%
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£143 GBP
Retailer 14£160 GBP
Retailer 13£178 GBP
Retailer 3£264 GBP
Retailer 11£275 GBP
Retailer 2£286 GBP
Retailer 8£315 GBP
Retailer 7£467 GBP
Retailer 10£549 GBP
Retailer 4£630 GBP
Retailer 12£649 GBP
Retailer 5£757 GBP
Retailer 9£784 GBP
Do Amore Diamonds£1,375 GBP

46 data points across 14 retailers

14 retailers£143 GBP to £1,375 GBP

A
Cheapest Retailer
-
£143 GBP
B+
Retailer 2
-
£160 GBP
View
Final sale: no returns
B+
Retailer 3
-
£178 GBP
View
B
Retailer 4
-
£264 GBP
View
B+
Retailer 5
-
£275 GBP
View
A
Retailer 6
-
£286 GBP
View
B+
Retailer 7
-
£315 GBP
View
B+
Retailer 8
-
£467 GBP
View
B
Retailer 9
-
£549 GBP
View
B
Retailer 10
-
£630 GBP
View
B
Retailer 11
-
£649 GBP
View
B
Retailer 12
-
£757 GBP
View
B
Retailer 13
-
£784 GBP
View
Most Expensive
C
Do Amore Diamonds
27-C19266312 · Nov 6
£1,375 GBP
$1,850 USD
View
13 more retailers have this diamond
Prices start from £143 GBPSave up to £1,231 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
1.51ct Princess
£143 GBP