Oval|Natural|GIA

1.21ct K SI1 Oval Natural Diamond

K/SI1 • GIA 2566685262

Certificate GIA 2566685262

Diamond specifications and retailer prices

From $1,996 USD
As of November 7, 2026
Save $737 USD (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,733 USD at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 2566685262. Listed at 3 retailers as of November 7, 2026, with prices from $1,996 to $2,733, a $737 spread on the same certified stone. Steven Stone lists it at $2,733. 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
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566685262
Dimensions8.35 × 5.92 × 3.72 mm
L/W Ratio1.41
Top View
8.35 mm5.92 mm1.21 ctK / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566685262
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: $1,996 USD|Low: $1,996 USD|High: $2,733 USD|Avg: $2,321 USD
Retailer 1
Retailer 2
Steven Stone
November 7, 2026
Retailer 1$1,996 USD
Retailer 2$2,233 USD
Steven Stone$2,733 USD

1 data point across 3 retailers

3 retailers$1,996 USD to $2,733 USD

B+
Cheapest Retailer
-
$1,996 USD
B
Retailer 2
-
$2,233 USD
View
Most Expensive
C
Steven Stone
339337430 · Nov 7
$2,733 USD
£2,152 GBP
View
2 more retailers have this diamond
Prices start from $1,996 USDSave up to $737 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 Oval
$1,996 USD