Round|Natural|GIA

1.21ct K I1 Round Natural Diamond

EX • K/I1

Diamond specifications and retailer prices

From $2,138 USD
As of November 6, 2026
Save $2,426 USD (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,564 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 I1 clarity (included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of November 5, 2026, with prices from $2,138 to $4,564, a $2,426 spread on the same certified stone. NZ Jewellers lists it at $4,564. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
K
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.76 × 6.80 × 4.27 mm
L/W Ratio1.01
Top View
6.76 mm6.80 mm1.21 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCuletDepth 62.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,564 USD|Low: $2,138 USD|High: $4,564 USD|Avg: $2,947 USD
NZ Jewellers
Retailer 2
September 10, 2026
Retailer 2$2,138 USD
NZ Jewellers$4,564 USD

2 data points across 2 retailers

2 retailers$2,138 USD to $4,564 USD

B
Cheapest Retailer
-
$2,138 USD
Most Expensive
C
NZ Jewellers
d57963b9-b883-4607-9a89-56809a35231f · Nov 5
$4,564 USD
View
1 more retailer has this diamond
Prices start from $2,138 USDSave up to $2,426 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.

B
1.21ct Round
$2,138 USD