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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5242069331

Certificate GIA 5242069331

Diamond specifications and retailer prices

From $19,436 NZD
As of November 3, 2026
Save $9,795 NZD (34%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $29,231 NZD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

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 5242069331. Listed at 13 retailers as of November 1, 2026, with prices from $19,436 to $29,231, a $9,795 spread on the same certified stone. Diamonds Direct lists it at $29,231. 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 angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5242069331
Dimensions8.63 × 8.67 × 5.43 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.63 mm8.67 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242069331
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 3
Current: $29,231 NZD|Low: $19,436 NZD|High: $30,823 NZD|Avg: $24,048 NZD|-5.2%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 6$19,436 NZD
Retailer 8$20,982 NZD
Retailer 7$21,194 NZD
Retailer 10$21,409 NZD
Retailer 11$21,523 NZD
Retailer 2$21,585 NZD
Retailer 13$21,921 NZD
Retailer 12$22,147 NZD
Retailer 3$25,115 NZD
Retailer 9$25,253 NZD
Retailer 4$25,280 NZD
Retailer 5$26,120 NZD
Diamonds Direct$29,231 NZD

30 data points across 13 retailers

13 retailers$19,436 NZD to $29,231 NZD

A
Cheapest Retailer
-
$19,436 NZD
A
Retailer 2
-
$20,982 NZD
View
A
Retailer 3
-
$21,194 NZD
View
A
Retailer 4
-
$21,409 NZD
View
A
Retailer 5
-
$21,523 NZD
View
A
Retailer 6
-
$21,585 NZD
View
A
Retailer 7
-
$21,921 NZD
View
A
Retailer 8
-
$22,147 NZD
View
B+
Retailer 9
-
$25,115 NZD
View
B+
Retailer 10
-
$25,253 NZD
View
B+
Retailer 11
-
$25,280 NZD
View
Retailer 12
-
$26,120 NZD
View
Price last confirmed 11 days ago
Most Expensive
B+
Diamonds Direct
1120578 · Nov 1
$29,231 NZD
$16,432 USD
View
12 more retailers have this diamond
Prices start from $19,436 NZDSave up to $9,795 NZD

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
$19,436 NZD