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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6551658112

Certificate GIA 6551658112

Diamond specifications and retailer prices

From $20,488 NZD
As of November 3, 2026
Save $16,240 NZD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $36,727 NZD at With Clarity · As of November 5, 2026
View at With Clarity

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6551658112. Listed at 11 retailers as of November 3, 2026, with prices from $20,488 to $36,727, a $16,240 spread on the same certified stone. With Clarity lists it at $36,727. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551658112
Dimensions8.60 × 5.41 × 5.41 mm
L/W Ratio1.59
Culet sizeNone
Top View
8.60 mm5.41 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551658112
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°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: $22,306 NZD|Low: $20,488 NZD|High: $38,629 NZD|Avg: $25,544 NZD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 5, 2026
Retailer 6$20,488 NZD
Retailer 8$21,155 NZD
Retailer 2$21,793 NZD
Retailer 1$22,306 NZD
Retailer 7$22,654 NZD
Retailer 5$24,513 NZD
Retailer 9$25,392 NZD
Retailer 4$26,095 NZD
Retailer 3$26,614 NZD
With Clarity$36,727 NZD

43 data points across 10 retailers

11 retailers$20,488 NZD to $36,727 NZD

A
Cheapest Retailer
-
$20,488 NZD
A
Retailer 2
-
$21,155 NZD
View
A
Retailer 3
-
$21,793 NZD
View
A
Retailer 4
-
$22,306 NZD
View
A
Retailer 5
-
$22,654 NZD
View
Retailer 6
-
$24,513 NZD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$25,392 NZD
View
A
Retailer 8
-
$26,095 NZD
View
A
Retailer 9
-
$26,614 NZD
View
B+
Retailer 10
-
$29,140 NZD
View
Most Expensive
B
With Clarity
6551658112 · Nov 5
$36,727 NZD
$20,646 USD
View
10 more retailers have this diamond
Prices start from $20,488 NZDSave up to $16,240 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
$20,488 NZD