CaratHunter
Plans
Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 6233776185

Certificate GIA 6233776185

Diamond specifications and retailer prices

From $14,617 AUD
As of November 6, 2026
Save $4,564 AUD (24%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $27,632 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6233776185. Listed at 16 retailers as of November 6, 2026, with a 31% 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

2.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.47°
OriginNatural
Grading LabGIA
CertificateGIA 6233776185
Dimensions11.32 × 7.40 × 4.47 mm
L/W Ratio1.53
Top View
11.32 mm7.40 mm2.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6233776185
Side View
Table 65.0%Crown 34.47°Girdle: THK-VTKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $27,632 AUD|Low: $12,253 AUD|High: $27,632 AUD|Avg: $18,039 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 10$13,462 AUD
Retailer 6$14,617 AUD
Retailer 12$14,845 AUD
Retailer 2$15,183 AUD
Retailer 8$15,381 AUD
Retailer 5$15,382 AUD
Retailer 18$15,833 AUD
Retailer 17$16,578 AUD
Retailer 7$16,870 AUD
Retailer 4$17,961 AUD
Retailer 15$18,238 AUD
Retailer 3$18,344 AUD
Retailer 11$18,344 AUD
Retailer 16$19,181 AUD
Retailer 9$20,723 AUD
Retailer 13$20,734 AUD
Retailer 14$26,030 AUD
NZ Jewellers$27,632 AUD

30 data points across 18 retailers

16 retailers$14,617 AUD to $19,181 AUD

B+
Cheapest Retailer
-
$14,617 AUD
Retailer 2
-
$14,845 AUD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$15,183 AUD
View
B+
Retailer 4
-
$15,381 AUD
View
Retailer 5
-
$15,382 AUD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$15,833 AUD
View
Retailer 7
-
$16,578 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$16,870 AUD
View
Price last confirmed 19 days ago
Retailer 9
-
$17,961 AUD
View
Price last confirmed 17 days ago
Retailer 10
-
$18,238 AUD
View
Price last confirmed 21 days ago
Retailer 11
-
$18,344 AUD
View
Price last confirmed 17 days ago
Retailer 12
-
$18,344 AUD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$19,181 AUD
View
Retailer 14
-
$20,723 AUD
View
Price last confirmed 19 days ago
Retailer 15
-
$26,030 AUD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
1e1aa86d-2b55-4780-943c-5d9c0077cdc7 · Oct 17
$27,632 AUD
$18,986 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from $14,617 AUDSave up to $4,564 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
2.51ct Oval
$14,617 AUD