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Marquise|Natural|GIA

2.53ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 5536637938

Certificate GIA 5536637938

Diamond specifications and retailer prices

From $13,821 AUD
As of November 3, 2026
Save $7,267 AUD (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $21,088 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 2.53ct natural marquise diamond

This 2.53ct natural marquise sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536637938. Listed at 6 retailers as of November 3, 2026, with prices from $13,821 to $21,088, a $7,267 spread on the same certified stone. NZ Jewellers lists it at $21,088. 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

2.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.42°
Pavilion angle38.95°
OriginNatural
Grading LabGIA
CertificateGIA 5536637938
Dimensions15.42 × 6.64 × 4.14 mm
L/W Ratio2.32
Top View
15.42 mm6.64 mm2.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536637938
Side View
Table 59.0%Crown 37.42°GirdlePavilion 38.95°CuletDepth 62.3%

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 3
Current: $21,088 AUD|Low: $13,821 AUD|High: $21,797 AUD|Avg: $16,596 AUD|-3.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4$13,821 AUD
Retailer 8$14,652 AUD
Retailer 2$14,756 AUD
Retailer 6$15,129 AUD
Retailer 5$15,362 AUD
Retailer 7$15,398 AUD
Retailer 3$19,759 AUD
NZ Jewellers$21,088 AUD

29 data points across 8 retailers

6 retailers$13,821 AUD to $21,088 AUD

A
Cheapest Retailer
-
$13,821 AUD
A
Retailer 2
-
$14,756 AUD
View
A
Retailer 3
-
$15,129 AUD
View
A
Retailer 4
-
$15,362 AUD
View
B+
Retailer 5
-
$19,759 AUD
View
Most Expensive
B+
NZ Jewellers
5b8d558d-5631-4d1d-9243-5fe81a977b76 · Nov 3
$21,088 AUD
$14,762 USD
View
5 more retailers have this diamond
Prices start from $13,821 AUDSave up to $7,267 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
2.53ct Marquise
$13,821 AUD