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Oval|Natural|GIA

2.55ct K SI2 Oval Natural Diamond

GD • K/SI2 • GIA 2548057145

Certificate GIA 2548057145

Diamond specifications and retailer prices

From $8,587 AUD
As of November 6, 2026
Save $7,220 AUD (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $19,022 AUD at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 2.55ct natural oval diamond

This 2.55ct natural oval sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2548057145. Listed at 5 retailers as of November 4, 2026, with a 84% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.55
Carat
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2548057145
Dimensions10.92 × 7.60 × 4.76 mm
L/W Ratio1.44
Top View
10.92 mm7.60 mm2.55 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2548057145
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.7%

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 6
Current: $19,022 AUD|Low: $8,130 AUD|High: $20,859 AUD|Avg: $11,499 AUD|-8.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 7$8,130 AUD
Retailer 4$8,587 AUD
Retailer 3$9,488 AUD
Retailer 9$9,766 AUD
Retailer 11$9,780 AUD
Retailer 6$10,303 AUD
Retailer 5$10,461 AUD
Retailer 8$10,955 AUD
Retailer 10$11,952 AUD
Retailer 2$15,807 AUD
NZ Jewellers$19,022 AUD

13 data points across 11 retailers

5 retailers$8,587 AUD to $15,807 AUD

B+
Cheapest Retailer
-
$8,587 AUD
Retailer 2
-
$10,303 AUD
View
Price last confirmed 15 days ago
Retailer 3
-
$10,461 AUD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$15,807 AUD
View
Most Expensive
NZ Jewellers
e6094b3a-5ee1-46c5-b18b-70e6cdba89a4 · Oct 23
$19,022 AUD
$13,070 USD
View
Price last confirmed 13 days ago
4 more retailers have this diamond
Prices start from $8,587 AUDSave up to $7,220 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+
2.55ct Oval
$8,587 AUD