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Round|Natural|GIA

2.51ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 5546795916

Certificate GIA 5546795916

Diamond specifications and retailer prices

From $10,897 AUD
As of November 4, 2026
Save $4,555 AUD (29%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $21,469 AUD at NZ Jewellers · As of October 9, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546795916. Listed at 15 retailers as of November 4, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5546795916
Dimensions8.64 × 8.70 × 5.41 mm
L/W Ratio1.01
Top View
8.64 mm8.70 mm2.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5546795916
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $21,098 AUD|Low: $10,605 AUD|High: $21,656 AUD|Avg: $15,290 AUD|+3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4$10,897 AUD
Retailer 8$13,851 AUD
Retailer 2$14,229 AUD
Retailer 7$15,004 AUD
Retailer 6$15,234 AUD
Retailer 3$15,386 AUD
Retailer 5$15,452 AUD
NZ Jewellers$21,098 AUD

39 data points across 8 retailers

15 retailers$10,897 AUD to $15,452 AUD

A
Cheapest Retailer
-
$10,897 AUD
B+
Retailer 2
-
$13,851 AUD
View
B+
Retailer 3
-
$14,229 AUD
View
Retailer 4
-
$15,004 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$15,234 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$15,271 AUD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$15,386 AUD
View
Retailer 8
-
$15,404 AUD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$15,452 AUD
View
Retailer 10
-
$15,538 AUD
View
Price last confirmed 36 days ago
Retailer 11
-
$15,776 AUD
View
Price last confirmed 38 days ago
Retailer 12
-
$20,353 AUD
View
Price last confirmed 41 days ago
Retailer 13
-
$21,098 AUD
View
Price last confirmed 10 days ago
Retailer 14
-
$21,283 AUD
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
2b01710c-fbc5-454e-a6c3-40e4eb4bbdcf · Oct 9
$21,469 AUD
$15,029 USD
View
Price last confirmed 28 days ago
14 more retailers have this diamond
Prices start from $10,897 AUDSave up to $4,555 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
$10,897 AUD