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Marquise|Natural|GIA

0.54ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 2566376370

Certificate GIA 2566376370

Diamond specifications and retailer prices

From $714 AUD
As of November 1, 2026
Save $158 AUD (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $873 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.54ct natural marquise diamond

This 0.54ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566376370. Listed at 3 retailers as of November 1, 2026, with prices from $714 to $873, a $158 spread on the same certified stone. 77 Diamonds lists it at $873. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566376370
Dimensions7.56 × 4.20 × 2.87 mm
L/W Ratio1.80
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.56 mm4.20 mm0.54 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2566376370
Side View
Table 55.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $873 AUD|Low: $693 AUD|High: $891 AUD|Avg: $769 AUD|+6.5%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$714 AUD
Retailer 3$760 AUD
77 Diamonds$873 AUD

38 data points across 3 retailers

3 retailers$714 AUD to $873 AUD

B+
Cheapest Retailer
-
$714 AUD
B+
Retailer 2
-
$760 AUD
View
Most Expensive
B
77 Diamonds
MQCPCHEKMCFE · Nov 6
$873 AUD
£481 GBP
View
2 more retailers have this diamond
Prices start from $714 AUDSave up to $158 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.

B+
0.54ct Marquise
$714 AUD