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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6562552701

Certificate GIA 6562552701

Diamond specifications and retailer prices

From $12,031 AUD
As of November 4, 2026
Save $10,607 AUD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $22,637 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562552701. Listed at 15 retailers as of November 4, 2026, with prices from $12,031 to $22,637, a $10,607 spread on the same certified stone. NZ Jewellers lists it at $22,637. 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

2.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6562552701
Dimensions8.69 × 8.73 × 5.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud, Needle, Indented Natural
Top View
8.69 mm8.73 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562552701
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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 4
Current: $22,637 AUD|Low: $12,031 AUD|High: $22,637 AUD|Avg: $16,292 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
November 6, 2026
Retailer 7$12,031 AUD
Retailer 9$12,244 AUD
Retailer 4$13,848 AUD
Retailer 3$13,885 AUD
Retailer 8$14,618 AUD
Retailer 5$14,714 AUD
Retailer 6$14,992 AUD
Retailer 13$16,242 AUD
Retailer 14$16,492 AUD
Retailer 15$16,622 AUD
Retailer 10$17,001 AUD
Retailer 12$18,740 AUD
Retailer 2$19,293 AUD
Retailer 11$21,155 AUD
NZ Jewellers$22,637 AUD

15 data points across 15 retailers

15 retailers$12,031 AUD to $22,637 AUD

A
Cheapest Retailer
-
$12,031 AUD
A
Retailer 2
-
$12,244 AUD
View
A
Retailer 3
-
$13,848 AUD
View
A
Retailer 4
-
$13,885 AUD
View
A
Retailer 5
-
$14,618 AUD
View
A
Retailer 6
-
$14,714 AUD
View
Retailer 7
-
$14,992 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$16,242 AUD
View
B+
Retailer 9
-
$16,492 AUD
View
B+
Retailer 10
-
$16,622 AUD
View
A
Retailer 11
-
$17,001 AUD
View
B+
Retailer 12
-
$18,740 AUD
View
B+
Retailer 13
-
$19,293 AUD
View
B+
Retailer 14
-
$21,155 AUD
View
Most Expensive
B
NZ Jewellers
7bf2947c-06a8-49ce-8a7e-b27de7ac2231 · Nov 5
$22,637 AUD
$15,847 USD
View
14 more retailers have this diamond
Prices start from $12,031 AUDSave up to $10,607 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 Round
$12,031 AUD