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2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • HRD 260000192986

Certificate HRD 260000192986

Diamond specifications and retailer prices

From $16,997 AUD
SGD 16,134 SGD
As of October 31, 2026
Save $360 AUD (2%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $26,920 AUD at NZ Jewellers · As of September 28, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 260000192986. Listed at 10 retailers as of October 30, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 260000192986
Dimensions8.56 × 8.65 × 5.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
8.56 mm8.65 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000192986
Side View
Table 56.0%Crown 36.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $26,920 AUD|Low: $14,872 AUD|High: $26,920 AUD|Avg: $19,446 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 13, 2026
Retailer 6$14,906 AUD
Retailer 12$16,336 AUD
Retailer 2$16,997 AUD
Retailer 9$17,085 AUD
Retailer 3$17,357 AUD
Retailer 11$17,829 AUD
Retailer 10$19,018 AUD
Retailer 4$19,315 AUD
Retailer 13$19,787 AUD
Retailer 5$20,059 AUD
Retailer 7$20,250 AUD
Retailer 8$25,530 AUD
NZ Jewellers$26,920 AUD

26 data points across 13 retailers

10 retailers$16,997 AUD to $17,357 AUD

Retailer 1
-
$14,906 AUD
₹997,193 INR
Price last confirmed 19 days ago
A
Retailer 2
-
$16,997 AUD
SGD 16,134 SGD
View
A
Retailer 3
-
$17,357 AUD
$12,192 USD
View
Retailer 4
-
$17,829 AUD
$12,524 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$19,018 AUD
$13,359 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$19,315 AUD
$13,568 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$19,787 AUD
$13,899 USD
View
Price last confirmed 20 days ago
Retailer 8
-
$20,059 AUD
$14,090 USD
View
Price last confirmed 22 days ago
Retailer 9
-
$25,530 AUD
£14,121 GBP
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
dfda7516-d111-4285-8acf-7cfc15a116d3 · Sep 28
$26,920 AUD
$18,910 USD
View
Price last confirmed 33 days ago
9 more retailers have this diamond
Prices start from $16,997 AUDSave up to $360 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
$16,997 AUD