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Princess|Lab Grown

1.51ct F SI1 Princess Lab Grown Diamond

VG • F/SI1 • 11818ACF49

Diamond specifications and retailer prices

From £217 GBP
As of November 6, 2026
Save £648 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £865 GBP at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade. Listed at 4 retailers as of November 6, 2026, with prices from £217 to £865, a £648 spread on the same certified stone. NZ Jewellers lists it at £865. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate11818ACF49
Dimensions6.19 × 5.98 × 4.56 mm
L/W Ratio1.04
Top View
6.19 mm5.98 mm1.51 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Certificate11818ACF49
Side View
Table 76.2%CrownGirdlePavilionCulet: NoneDepth 75.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £865 GBP|Low: £208 GBP|High: £865 GBP|Avg: £334 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 11, 2026
Retailer 2£217 GBP
Retailer 4£252 GBP
Retailer 3£269 GBP
NZ Jewellers£865 GBP

8 data points across 4 retailers

4 retailers£217 GBP to £865 GBP

B+
Cheapest Retailer
-
£217 GBP
B+
Retailer 2
-
£252 GBP
View
B+
Retailer 3
-
£269 GBP
View
Most Expensive
C
NZ Jewellers
f60cfabc-1d5e-433d-9c35-b68871dd9153 · Nov 6
£865 GBP
$1,158 USD
View
3 more retailers have this diamond
Prices start from £217 GBPSave up to £648 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.

B+
1.51ct Princess
£217 GBP