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Oval|Natural|GIA

2.51ct M SI2 Oval Natural Diamond

M/SI2 • GIA 6551117951

Certificate GIA 6551117951

Diamond specifications and retailer prices

From $16,336 NZD
As of November 6, 2026
6 retailers carry this diamond
Most expensive: $18,216 NZD at NZ Jewellers · As of September 26, 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 M colour (faint-tinted) and SI2 clarity (slightly-included) and certified by GIA 6551117951. Listed at 6 retailers as of November 6, 2026. 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
M
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551117951
Dimensions11.18 × 7.67 × 4.50 mm
L/W Ratio1.46
Top View
11.18 mm7.67 mm2.51 ctM / SI2
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551117951
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $18,216 NZD|Low: $8,011 NZD|High: $18,216 NZD|Avg: $11,563 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$8,011 NZD
Retailer 6$8,219 NZD
Retailer 9$9,712 NZD
Retailer 4$10,890 NZD
Retailer 5$10,890 NZD
Retailer 7$10,890 NZD
Retailer 11$11,172 NZD
Retailer 8$12,566 NZD
Retailer 3$12,727 NZD
Retailer 2$16,336 NZD
NZ Jewellers$18,216 NZD

22 data points across 11 retailers

6 retailers

Retailer 1
-
$8,011 NZD
Price last confirmed 26 days ago
Retailer 2
-
$10,890 NZD
View
Price last confirmed 39 days ago
Retailer 3
-
$10,890 NZD
View
Price last confirmed 38 days ago
Retailer 4
-
$12,566 NZD
View
Price last confirmed 38 days ago
B
Retailer 5
-
$16,336 NZD
View
Most Expensive
NZ Jewellers
c8bf3adf-8362-4357-8aed-1515a2b7a1ef · Sep 26
$18,216 NZD
$10,098 USD
View
Price last confirmed 40 days ago
5 more retailers have this diamond
Prices start from $16,336 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.

B
2.51ct Oval
$16,336 NZD