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Round|Natural|GIA

1.21ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6552463506

Certificate GIA 6552463506

Diamond specifications and retailer prices

From $2,027 AUD
As of November 5, 2026
Save $1,828 AUD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,856 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552463506. Listed at 13 retailers as of November 5, 2026, with prices from $2,027 to $3,856, a $1,828 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,856. 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

1.21
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552463506
Dimensions6.83 × 6.85 × 4.21 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.83 mm6.85 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552463506
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.5%

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 5
Current: $2,953 AUD|Low: $2,017 AUD|High: $3,968 AUD|Avg: $2,817 AUD|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$2,027 AUD
Retailer 8$2,355 AUD
Retailer 9$2,355 AUD
Retailer 3$2,403 AUD
Retailer 2$2,563 AUD
Retailer 4$2,595 AUD
Retailer 10$2,832 AUD
Retailer 1$2,953 AUD
Retailer 7$3,030 AUD
Retailer 11$3,110 AUD
Retailer 6$3,291 AUD
Wholesale Diamonds Direct$3,856 AUD

34 data points across 12 retailers

13 retailers$2,027 AUD to $3,856 AUD

A
Cheapest Retailer
-
$2,027 AUD
A
Retailer 2
-
$2,355 AUD
View
A
Retailer 3
-
$2,355 AUD
View
A
Retailer 4
-
$2,403 AUD
View
A
Retailer 5
-
$2,563 AUD
View
A
Retailer 6
-
$2,595 AUD
View
A
Retailer 7
-
$2,832 AUD
View
B+
Retailer 8
-
$2,928 AUD
View
A
Retailer 9
-
$2,953 AUD
View
A
Retailer 10
-
$3,030 AUD
View
B+
Retailer 11
-
$3,110 AUD
View
B+
Retailer 12
-
$3,291 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
570927855 · Nov 6
$3,856 AUD
$2,649 USD
View
12 more retailers have this diamond
Prices start from $2,027 AUDSave up to $1,828 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
1.21ct Round
$2,027 AUD