Round|Natural|HRD

2.51ct E SI2 Round Natural Diamond

GD • E/SI2 • HRD 260000059811

Certificate HRD 260000059811

Diamond specifications and retailer prices

From $10,080 USD
A$15,508 AUD
As of October 29, 2026
Save $7,461 USD (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $19,135 USD at NZ Jewellers · As of September 27, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by HRD 260000059811. Listed at 13 retailers as of October 29, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Pavilion angle40.3°
OriginNatural
Grading LabHRD
CertificateHRD 260000059811
Dimensions8.19 × 8.33 × 5.50 mm
L/W Ratio1.02
Top View
8.19 mm8.33 mm2.51 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 260000059811
Side View
Table 57.0%CrownGirdle: Very ThickPavilion 40.3°Culet: NoneDepth 66.4%

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: Oct 29
Current: $17,541 USD|Low: $8,324 USD|High: $18,147 USD|Avg: $12,503 USD|+28.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6$10,080 USD
Retailer 3$11,441 USD
Retailer 5$11,817 USD
Retailer 4$12,332 USD
Retailer 2$13,451 USD
Retailer 1$17,541 USD

27 data points across 6 retailers

13 retailers$10,080 USD to $17,541 USD

A
Cheapest Retailer
-
$10,080 USD
A$15,508 AUD
Retailer 2
-
$10,428 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$11,441 USD
View
A
Retailer 4
-
$11,817 USD
View
Final sale: no returns
B+
Retailer 5
-
$12,332 USD
View
Retailer 6
-
$12,673 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$13,451 USD
€12,810 EUR
View
Retailer 8
-
$13,518 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$13,729 USD
View
Price last confirmed 22 days ago
Retailer 10
-
$14,257 USD
View
Price last confirmed 20 days ago
Retailer 11
-
$14,534 USD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
$17,541 USD
£13,812 GBP
View
Most Expensive
NZ Jewellers
7183bb81-2c3f-495b-9c5a-0281a23ee46f · Sep 27
$19,135 USD
View
Price last confirmed 32 days ago
12 more retailers have this diamond
Prices start from $10,080 USDSave up to $7,461 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
$10,080 USD