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Round|Natural|GIA

2.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 2245050886

Certificate GIA 2245050886

Diamond specifications and retailer prices

From $7,915 USD
As of November 4, 2026
Save $7,402 USD (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,317 USD 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245050886. Listed at 11 retailers as of November 4, 2026, with prices from $7,915 to $15,317, a $7,402 spread on the same certified stone. NZ Jewellers lists it at $15,317. 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
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2245050886
Dimensions8.63 × 8.70 × 5.45 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Needle, Natural
Top View
8.63 mm8.70 mm2.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245050886
Side View
Table 56.0%Crown 33°Girdle: Sli. ThickPavilion 41.6°Culet: NoneDepth 62.9%

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: $15,317 USD|Low: $7,915 USD|High: $16,617 USD|Avg: $10,356 USD|-7.8%
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 7$7,915 USD
Retailer 3$7,991 USD
Retailer 9$8,453 USD
Retailer 5$8,900 USD
Retailer 11$9,158 USD
Retailer 10$9,299 USD
Retailer 8$9,359 USD
Retailer 4$9,942 USD
Retailer 2$9,972 USD
Retailer 6$10,567 USD
NZ Jewellers$15,317 USD

39 data points across 11 retailers

11 retailers$7,915 USD to $15,317 USD

A
Cheapest Retailer
-
$7,915 USD
A
Retailer 2
-
$7,991 USD
View
Retailer 3
-
$8,453 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$8,900 USD
View
B+
Retailer 5
-
$9,158 USD
View
B+
Retailer 6
-
$9,299 USD
View
B+
Retailer 7
-
$9,359 USD
View
B+
Retailer 8
-
$9,942 USD
View
B+
Retailer 9
-
$9,972 USD
View
B+
Retailer 10
-
$10,567 USD
View
Most Expensive
B
NZ Jewellers
212e4133-6e3b-4518-9414-07f823665f85 · Nov 5
$15,317 USD
View
10 more retailers have this diamond
Prices start from $7,915 USDSave up to $7,402 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 Round
$7,915 USD