Round|Natural|GIA

1.21ct K I1 Round Natural Diamond

VG • K/I1 • GIA 2366245631

Certificate GIA 2366245631

Diamond specifications and retailer prices

From $1,779 USD
As of November 4, 2026
Save $2,703 USD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,482 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 very-good cut grade and certified by GIA 2366245631. Listed at 8 retailers as of November 4, 2026, with prices from $1,779 to $4,482, a $2,703 spread on the same certified stone. NZ Jewellers lists it at $4,482. 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

1.21
Carat
K
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2366245631
Dimensions6.61 × 6.67 × 4.27 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
6.61 mm6.67 mm1.21 ctK / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2366245631
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.6°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,482 USD|Low: $1,766 USD|High: $4,482 USD|Avg: $2,470 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$1,779 USD
Retailer 8$1,937 USD
Retailer 4$2,144 USD
Retailer 6$2,144 USD
Retailer 10$2,232 USD
Retailer 5$2,243 USD
Retailer 7$2,474 USD
Retailer 9$2,673 USD
Retailer 2$2,910 USD
NZ Jewellers$4,482 USD

18 data points across 10 retailers

8 retailers$1,779 USD to $4,482 USD

B+
Cheapest Retailer
-
$1,779 USD
B+
Retailer 2
-
$1,937 USD
View
B
Retailer 3
-
$2,144 USD
View
Retailer 4
-
$2,144 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$2,243 USD
View
B
Retailer 6
-
$2,474 USD
View
B
Retailer 7
-
$2,910 USD
View
Most Expensive
C
NZ Jewellers
40b4cca8-f78e-4904-bdeb-db19a48cc911 · Nov 5
$4,482 USD
View
7 more retailers have this diamond
Prices start from $1,779 USDSave up to $2,703 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
$1,779 USD