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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2548809772

Certificate GIA 2548809772

Diamond specifications and retailer prices

From $1,510 USD
As of November 6, 2026
Save $3,374 USD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,884 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2548809772. Listed at 8 retailers as of November 5, 2026, with prices from $1,510 to $4,884, a $3,374 spread on the same certified stone. NZ Jewellers lists it at $4,884. 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2548809772
Dimensions6.80 × 6.83 × 4.27 mm
L/W Ratio1.00
Top View
6.80 mm6.83 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548809772
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.7%

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 6
Current: $4,884 USD|Low: $1,510 USD|High: $4,884 USD|Avg: $2,576 USD|+11.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$1,510 USD
Retailer 7$1,808 USD
Retailer 3$1,889 USD
Retailer 4$2,140 USD
Retailer 5$2,162 USD
Retailer 6$2,575 USD
Retailer 8$3,498 USD
NZ Jewellers$4,884 USD

28 data points across 8 retailers

8 retailers$1,510 USD to $4,884 USD

A
Cheapest Retailer
-
$1,510 USD
A
Retailer 2
-
$1,808 USD
View
A
Retailer 3
-
$1,889 USD
View
A
Retailer 4
-
$2,140 USD
View
A
Retailer 5
-
$2,162 USD
View
A
Retailer 6
-
$2,575 USD
View
B+
Retailer 7
-
$3,498 USD
View
Most Expensive
B
NZ Jewellers
a5c98d07-f077-4ded-9cb2-d72a572da26b · Nov 5
$4,884 USD
View
7 more retailers have this diamond
Prices start from $1,510 USDSave up to $3,374 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
1.21ct Round
$1,510 USD