Oval|Natural|GIA

1.21ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 6542323812

Certificate GIA 6542323812

Diamond specifications and retailer prices

From $3,935 USD
As of November 6, 2026
Save $4,720 USD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,655 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542323812. Listed at 14 retailers as of November 2, 2026, with prices from $3,935 to $8,655, a $4,720 spread on the same certified stone. MOH London lists it at $8,655. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542323812
Dimensions8.47 × 5.96 × 3.71 mm
L/W Ratio1.42
Top View
8.47 mm5.96 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542323812
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.3%

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 6
Current: $8,655 USD|Low: $3,935 USD|High: $8,759 USD|Avg: $5,640 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$3,935 USD
Retailer 9$4,033 USD
Retailer 10$4,345 USD
Retailer 6$5,007 USD
Retailer 7$5,183 USD
Retailer 2$5,250 USD
Retailer 8$5,478 USD
Retailer 4$6,147 USD
Retailer 5$7,868 USD
MOH London$8,655 USD

45 data points across 10 retailers

14 retailers$3,935 USD to $8,655 USD

B+
Cheapest Retailer
-
$3,935 USD
B+
Retailer 2
-
$4,033 USD
View
B+
Retailer 3
-
$4,345 USD
View
B
Retailer 4
-
$5,007 USD
View
B
Retailer 5
-
$5,183 USD
View
B
Retailer 6
-
$5,250 USD
View
Retailer 7
-
$5,478 USD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$5,520 USD
View
B
Retailer 9
-
$5,520 USD
View
B
Retailer 10
-
$5,579 USD
View
B
Retailer 11
-
$5,700 USD
View
B
Retailer 12
-
$6,147 USD
View
B
Retailer 13
-
$7,868 USD
View
Most Expensive
B
MOH London
827C398C0 · Nov 2
$8,655 USD
£6,815 GBP
View
13 more retailers have this diamond
Prices start from $3,935 USDSave up to $4,720 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
$3,935 USD