Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6512485714

Certificate GIA 6512485714

Diamond specifications and retailer prices

From $3,615 USD
As of November 5, 2026
Save $4,285 USD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,900 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512485714. Listed at 14 retailers as of November 5, 2026, with prices from $3,615 to $7,900, a $4,285 spread on the same certified stone. NZ Jewellers lists it at $7,900. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512485714
Dimensions8.49 × 5.71 × 3.62 mm
L/W Ratio1.49
Top View
8.49 mm5.71 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512485714
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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 5
Current: $4,399 USD|Low: $3,615 USD|High: $7,310 USD|Avg: $4,857 USD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,615 USD
Retailer 6$3,859 USD
Retailer 9$3,910 USD
Retailer 1$4,399 USD
Retailer 8$4,571 USD
Retailer 2$4,593 USD
Retailer 5$5,130 USD
Retailer 3$5,532 USD
Retailer 4$7,203 USD

39 data points across 9 retailers

14 retailers$3,615 USD to $7,900 USD

B
Cheapest Retailer
-
$3,615 USD
B+
Retailer 2
-
$3,859 USD
View
B+
Retailer 3
-
$3,910 USD
View
B
Retailer 4
-
$4,108 USD
View
Retailer 5
-
$4,108 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$4,108 USD
View
B
Retailer 7
-
$4,399 USD
View
Retailer 8
-
$4,571 USD
View
Price last confirmed 28 days ago
B
Retailer 9
-
$4,593 USD
View
B
Retailer 10
-
$4,740 USD
View
B
Retailer 11
-
$5,130 USD
View
B
Retailer 12
-
$5,532 USD
View
B
Retailer 13
-
$7,203 USD
View
Most Expensive
B
NZ Jewellers
edce7938-a8a4-4108-9120-d4a5b64d9071 · Nov 5
$7,900 USD
View
13 more retailers have this diamond
Prices start from $3,615 USDSave up to $4,285 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
$3,615 USD