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Marquise|Natural|GIA

0.54ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1555279981

Certificate GIA 1555279981

Diamond specifications and retailer prices

From $748 AUD
As of November 6, 2026
Save $1,165 AUD (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,913 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 0.54ct natural marquise diamond

This 0.54ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555279981. Listed at 6 retailers as of November 4, 2026, with prices from $748 to $1,913, a $1,165 spread on the same certified stone. MOH London lists it at $1,913. 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

0.54
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555279981
Dimensions8.40 × 4.35 × 2.54 mm
L/W Ratio1.93
Top View
8.40 mm4.35 mm0.54 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555279981
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.4%

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 6
Current: $1,913 AUD|Low: $748 AUD|High: $2,029 AUD|Avg: $1,386 AUD|-4.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$748 AUD
Retailer 3$1,241 AUD
Retailer 5$1,432 AUD
Retailer 4$1,572 AUD
MOH London$1,913 AUD

45 data points across 5 retailers

6 retailers$748 AUD to $1,913 AUD

A
Cheapest Retailer
-
$748 AUD
A
Retailer 2
-
$962 AUD
View
A
Retailer 3
-
$1,241 AUD
View
B+
Retailer 4
-
$1,432 AUD
View
Retailer 5
-
$1,572 AUD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
BA277C645 · Nov 4
$1,913 AUD
£1,035 GBP
View
5 more retailers have this diamond
Prices start from $748 AUDSave up to $1,165 AUD

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
0.54ct Marquise
$748 AUD