Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2514997177

Certificate GIA 2514997177

Diamond specifications and retailer prices

From $2,811 USD
As of November 6, 2026
Save $2,968 USD (51%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,037 USD at NZ Jewellers · As of October 17, 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 2514997177. Listed at 20 retailers as of November 4, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2514997177
Dimensions6.77 × 6.74 × 4.22 mm
L/W Ratio1.00
Top View
6.77 mm6.74 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2514997177
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,270 USD|Low: $2,811 USD|High: $5,864 USD|Avg: $3,677 USD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15$2,811 USD
Retailer 12$2,830 USD
Retailer 16$2,876 USD
Retailer 10$2,948 USD
Retailer 8$3,159 USD
Retailer 1$3,270 USD
Retailer 3$3,286 USD
Retailer 2$3,435 USD
Retailer 5$3,465 USD
Retailer 6$3,465 USD
Retailer 9$3,542 USD
Retailer 4$3,652 USD
Retailer 14$3,840 USD
Retailer 7$4,123 USD
Retailer 13$5,052 USD
Retailer 11$5,779 USD

36 data points across 16 retailers

20 retailers$2,811 USD to $5,779 USD

A
Cheapest Retailer
-
$2,811 USD
A
Retailer 2
-
$2,830 USD
View
A
Retailer 3
-
$2,876 USD
View
B+
Retailer 4
-
$2,948 USD
View
B+
Retailer 5
-
$3,159 USD
View
B+
Retailer 6
-
$3,270 USD
View
B+
Retailer 7
-
$3,286 USD
View
B+
Retailer 8
-
$3,435 USD
View
Retailer 9
-
$3,465 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$3,465 USD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$3,542 USD
View
Retailer 12
-
$3,598 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$3,652 USD
View
B
Retailer 14
-
$3,840 USD
View
Retailer 15
-
$3,998 USD
View
Price last confirmed 60 days ago
Retailer 16
-
$3,998 USD
View
Price last confirmed 19 days ago
B
Retailer 17
-
$5,052 USD
View
B
Retailer 18
-
$5,779 USD
View
Retailer 19
-
$6,037 USD
View
Price last confirmed 57 days ago
Most Expensive
NZ Jewellers
47c026bc-2b12-4414-b735-69a546780bda · Oct 17
$6,037 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $2,811 USDSave up to $2,968 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
$2,811 USD