CaratHunter
Plans
Marquise|Lab Grown

0.54ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • TA50D-26-488

Diamond specifications and retailer prices

From £137 GBP
$183 USD
As of November 2, 2026
Save £407 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £544 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.54ct lab-grown marquise diamond

This 0.54ct lab-grown marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 31, 2026, with prices from £137 to £544, a £407 spread on the same certified stone. NZ Jewellers lists it at £544. 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

0.54
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA50D-26-488
Dimensions8.42 × 4.04 × 2.63 mm
L/W Ratio2.08
Top View
8.42 mm4.04 mm0.54 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateTA50D-26-488
Side View
Table 62.5%CrownGirdlePavilionCuletDepth 65.1%

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: £544 GBP|Low: £131 GBP|High: £544 GBP|Avg: £237 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£137 GBP
Retailer 4£158 GBP
Retailer 3£169 GBP
NZ Jewellers£544 GBP

6 data points across 4 retailers

4 retailers£137 GBP to £544 GBP

B+
Cheapest Retailer
-
£137 GBP
$183 USD
B
Retailer 2
-
£158 GBP
$212 USD
View
B
Retailer 3
-
£169 GBP
$227 USD
View
Most Expensive
C
NZ Jewellers
619b4e59-47fc-4816-92ea-9f8f96fbadbb · Oct 31
£544 GBP
$729 USD
View
3 more retailers have this diamond
Prices start from £137 GBPSave up to £407 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+
0.54ct Marquise
£137 GBP