Marquise|Lab Grown

1.25ct F SI2 Marquise Lab Grown Diamond

VG • F/SI2 • 84AF58E046

Diamond specifications and retailer prices

From £183 GBP
$245 USD
As of November 2, 2026
Save £546 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £729 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 31, 2026, with prices from £183 to £729, a £546 spread on the same certified stone. NZ Jewellers lists it at £729. 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

1.25
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate84AF58E046
Dimensions10.87 × 5.33 × 3.50 mm
L/W Ratio2.04
Top View
10.87 mm5.33 mm1.25 ctF / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate84AF58E046
Side View
Table 65.7%CrownGirdlePavilionCulet: NoneDepth 56.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £729 GBP|Low: £176 GBP|High: £729 GBP|Avg: £318 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£183 GBP
Retailer 4£212 GBP
Retailer 3£227 GBP
NZ Jewellers£729 GBP

6 data points across 4 retailers

4 retailers£183 GBP to £729 GBP

B+
Cheapest Retailer
-
£183 GBP
$245 USD
B+
Retailer 2
-
£212 GBP
$285 USD
View
B+
Retailer 3
-
£227 GBP
$304 USD
View
Most Expensive
C
NZ Jewellers
1bae63e8-a312-461b-9a47-8c12b8a1e22a · Oct 31
£729 GBP
$978 USD
View
3 more retailers have this diamond
Prices start from £183 GBPSave up to £546 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+
1.25ct Marquise
£183 GBP