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Marquise|Lab Grown

0.81ct G SI1 Marquise Lab Grown Diamond

EX • G/SI1 • TA50D-2-493

Diamond specifications and retailer prices

From £221 GBP
$297 USD
As of November 2, 2026
Save £661 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £882 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.81ct lab-grown marquise diamond

This 0.81ct lab-grown marquise sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade. Listed at 4 retailers as of October 31, 2026, with prices from £221 to £882, a £661 spread on the same certified stone. NZ Jewellers lists it at £882. 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

0.81
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA50D-2-493
Dimensions10.08 × 4.81 × 2.76 mm
L/W Ratio2.10
Top View
10.08 mm4.81 mm0.81 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateTA50D-2-493
Side View
Table 57.1%CrownGirdlePavilionCuletDepth 57.4%

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: £882 GBP|Low: £212 GBP|High: £882 GBP|Avg: £385 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£221 GBP
Retailer 4£257 GBP
Retailer 3£274 GBP
NZ Jewellers£882 GBP

6 data points across 4 retailers

4 retailers£221 GBP to £882 GBP

B+
Cheapest Retailer
-
£221 GBP
$297 USD
B+
Retailer 2
-
£257 GBP
$345 USD
View
B
Retailer 3
-
£274 GBP
$368 USD
View
Most Expensive
C
NZ Jewellers
fe902cfe-2556-40e5-acec-5a1dea604ca2 · Oct 31
£882 GBP
$1,184 USD
View
3 more retailers have this diamond
Prices start from £221 GBPSave up to £661 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+
0.81ct Marquise
£221 GBP