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Round|Natural|HRD

2.21ct D SI2 Round Natural Diamond

EX • D/SI2 • HRD 240000163007

Certificate HRD 240000163007

Diamond specifications and retailer prices

From $17,778 AUD
$12,488 USD
As of October 30, 2026
Save $12,710 AUD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $30,488 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 2.21ct natural round diamond

This 2.21ct natural round sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000163007. Listed at 11 retailers as of October 29, 2026, with prices from $17,778 to $30,488, a $12,710 spread on the same certified stone. Diamond Quarter lists it at $30,488. 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

2.21
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 240000163007
Dimensions8.34 × 8.28 × 5.14 mm
L/W Ratio1.01
Top View
8.34 mm8.28 mm2.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 240000163007
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 61.9%

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: Oct 30
Current: $21,873 AUD|Low: $17,778 AUD|High: $28,932 AUD|Avg: $20,660 AUD|+8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$17,778 AUD
Retailer 3$18,352 AUD
Retailer 11$18,362 AUD
Retailer 12$18,550 AUD
Retailer 6$19,162 AUD
Retailer 7$20,439 AUD
Retailer 4$20,480 AUD
Retailer 9$20,758 AUD
Retailer 10$21,556 AUD
Retailer 1$21,873 AUD
Retailer 5$27,257 AUD
Retailer 8$28,932 AUD

18 data points across 12 retailers

11 retailers$17,778 AUD to $30,488 AUD

A
Cheapest Retailer
-
$17,778 AUD
$12,488 USD
A
Retailer 2
-
$18,362 AUD
$12,898 USD
View
Final sale: no returns
A
Retailer 3
-
$18,550 AUD
$13,030 USD
View
A
Retailer 4
-
$19,162 AUD
$13,460 USD
View
A
Retailer 5
-
$20,439 AUD
$14,357 USD
View
A
Retailer 6
-
$20,758 AUD
$14,581 USD
View
A
Retailer 7
-
$21,556 AUD
$15,142 USD
View
A
Retailer 8
-
$21,873 AUD
€14,633 EUR
View
B+
Retailer 9
-
$27,257 AUD
£15,076 GBP
View
B+
Retailer 10
-
$28,932 AUD
$20,323 USD
View
Most Expensive
B
Diamond Quarter
2.21SI2D240741FBN · Oct 29
$30,488 AUD
£16,863 GBP
View
10 more retailers have this diamond
Prices start from $17,778 AUDSave up to $12,710 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
2.21ct Round
$17,778 AUD