CaratHunter
Plans
Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 2546456911

Certificate GIA 2546456911

Diamond specifications and retailer prices

From $11,594 USD
As of November 4, 2026
Save $9,030 USD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $20,624 USD at NZ Jewellers · As of November 5, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546456911. Listed at 9 retailers as of November 4, 2026, with prices from $11,594 to $20,624, a $9,030 spread on the same certified stone. NZ Jewellers lists it at $20,624. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.85°
Pavilion angle39.63°
OriginNatural
Grading LabGIA
CertificateGIA 2546456911
Dimensions11.99 × 7.17 × 4.42 mm
L/W Ratio1.67
Top View
11.99 mm7.17 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546456911
Side View
Table 59.0%Crown 37.85°GirdlePavilion 39.63°Culet: NoneDepth 61.6%

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: $20,624 USD|Low: $9,320 USD|High: $20,624 USD|Avg: $14,913 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$9,320 USD
Retailer 9$11,594 USD
Retailer 8$13,200 USD
Retailer 5$13,204 USD
Retailer 10$13,406 USD
Retailer 11$13,921 USD
Retailer 2$14,551 USD
Retailer 7$15,587 USD
Retailer 12$15,885 USD
Retailer 3$17,647 USD
Retailer 6$19,274 USD
NZ Jewellers$20,624 USD

31 data points across 12 retailers

9 retailers$11,594 USD to $20,624 USD

A
Cheapest Retailer
-
$11,594 USD
B+
Retailer 2
-
$13,200 USD
View
B+
Retailer 3
-
$13,204 USD
View
B+
Retailer 4
-
$13,406 USD
View
B+
Retailer 5
-
$13,921 USD
View
B+
Retailer 6
-
$14,551 USD
View
B
Retailer 7
-
$15,587 USD
View
B
Retailer 8
-
$19,274 USD
View
Most Expensive
B
NZ Jewellers
4ec45a73-6ca0-4e56-a7e0-2fded4eaf716 · Nov 5
$20,624 USD
View
8 more retailers have this diamond
Prices start from $11,594 USDSave up to $9,030 USD

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
$11,594 USD