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Marquise|Lab Grown

1.01ct E SI1 Marquise Lab Grown Diamond

E/SI1 • 559D9A997A

Diamond specifications and retailer prices

From £109 GBP
As of November 4, 2026
Save £325 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £435 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 1.01ct lab-grown marquise diamond

This 1.01ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included). Listed at 4 retailers as of November 4, 2026, with prices from £109 to £435, a £325 spread on the same certified stone. NZ Jewellers lists it at £435. 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

1.01
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate559D9A997A
Dimensions10.89 × 5.20 × 3.16 mm
L/W Ratio2.09
Top View
10.89 mm5.20 mm1.01 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate559D9A997A
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 60.8%

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 4
Current: £435 GBP|Low: £105 GBP|High: £435 GBP|Avg: £190 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£109 GBP
Retailer 4£126 GBP
Retailer 3£135 GBP
NZ Jewellers£435 GBP

6 data points across 4 retailers

4 retailers£109 GBP to £435 GBP

B+
Cheapest Retailer
-
£109 GBP
B+
Retailer 2
-
£126 GBP
View
B+
Retailer 3
-
£135 GBP
View
Most Expensive
C
NZ Jewellers
5becdb7a-6a4d-4ff2-950c-c8cc46966603 · Nov 4
£435 GBP
$585 USD
View
3 more retailers have this diamond
Prices start from £109 GBPSave up to £325 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+
1.01ct Marquise
£109 GBP