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Marquise|Lab Grown|UNKNOWN

0.87ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • UNKNOWN 234419783

Certificate UNKNOWN 234419783

Diamond specifications and retailer prices

From £74 GBP
$99 USD
As of November 2, 2026
Save £221 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £294 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.87ct lab-grown marquise diamond

This 0.87ct lab-grown marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 234419783. Listed at 4 retailers as of October 31, 2026, with prices from £74 to £294, a £221 spread on the same certified stone. NZ Jewellers lists it at £294. 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

0.87
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 234419783
Dimensions10.93 × 4.86 × 2.72 mm
L/W Ratio2.25
Top View
10.93 mm4.86 mm0.87 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 234419783
Side View
Table 82.0%CrownGirdlePavilionCuletDepth 56.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £294 GBP|Low: £71 GBP|High: £294 GBP|Avg: £129 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 16, 2026
Retailer 2£74 GBP
Retailer 4£86 GBP
Retailer 3£98 GBP
Retailer 5£118 GBP
NZ Jewellers£294 GBP

8 data points across 5 retailers

4 retailers£74 GBP to £294 GBP

A
Cheapest Retailer
-
£74 GBP
$99 USD
B+
Retailer 2
-
£86 GBP
$115 USD
View
B+
Retailer 3
-
£98 GBP
$131 USD
View
Most Expensive
B
NZ Jewellers
a51cc97b-b818-4abd-a300-ec297d28aa1d · Oct 31
£294 GBP
$395 USD
View
3 more retailers have this diamond
Prices start from £74 GBPSave up to £221 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
0.87ct Marquise
£74 GBP