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Round|Natural|GIA

2.51ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 7552332939

Certificate GIA 7552332939

Diamond specifications and retailer prices

From $7,754 AUD
As of November 6, 2026
Save $10,218 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $17,972 AUD 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7552332939. Listed at 12 retailers as of November 5, 2026, with prices from $7,754 to $17,972, a $10,218 spread on the same certified stone. NZ Jewellers lists it at $17,972. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7552332939
Dimensions8.75 × 8.78 × 5.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
8.75 mm8.78 mm2.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7552332939
Side View
Table 61.0%Crown 33°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 59.8%

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 6
Current: $17,972 AUD|Low: $7,754 AUD|High: $18,013 AUD|Avg: $11,076 AUD|-0.2%
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 2$7,754 AUD
Retailer 9$9,371 AUD
Retailer 10$9,662 AUD
Retailer 4$9,920 AUD
Retailer 12$9,921 AUD
Retailer 11$10,745 AUD
Retailer 3$10,911 AUD
Retailer 5$10,992 AUD
Retailer 7$11,044 AUD
Retailer 6$12,339 AUD
Retailer 8$12,399 AUD
NZ Jewellers$17,972 AUD

37 data points across 12 retailers

12 retailers$7,754 AUD to $17,972 AUD

A
Cheapest Retailer
-
$7,754 AUD
B+
Retailer 2
-
$9,371 AUD
View
B+
Retailer 3
-
$9,662 AUD
View
Retailer 4
-
$9,920 AUD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$9,921 AUD
View
B+
Retailer 6
-
$10,745 AUD
View
B+
Retailer 7
-
$10,911 AUD
View
A
Retailer 8
-
$10,992 AUD
View
B+
Retailer 9
-
$11,044 AUD
View
B+
Retailer 10
-
$12,339 AUD
View
B+
Retailer 11
-
$12,399 AUD
View
Most Expensive
B
NZ Jewellers
22db8a53-e38f-43ca-a910-0a216640f3b4 · Nov 5
$17,972 AUD
$12,581 USD
View
11 more retailers have this diamond
Prices start from $7,754 AUDSave up to $10,218 AUD

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
$7,754 AUD