Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6545974485

Certificate GIA 6545974485

Diamond specifications and retailer prices

From $2,702 USD
As of November 6, 2026
Save $3,921 USD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,623 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 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 6545974485. Listed at 20 retailers as of November 2, 2026, with prices from $2,702 to $6,623, a $3,921 spread on the same certified stone. MOH London lists it at $6,623. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545974485
Dimensions8.50 × 6.04 × 3.53 mm
L/W Ratio1.41
Top View
8.50 mm6.04 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545974485
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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 6
Current: $6,623 USD|Low: $1,958 USD|High: $6,659 USD|Avg: $3,097 USD|+40.8%
MOH London
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 7$1,958 USD
Retailer 5$2,168 USD
Retailer 9$2,224 USD
Retailer 4$2,285 USD
Retailer 6$2,324 USD
Retailer 8$2,472 USD
Retailer 10$2,520 USD
Retailer 12$2,979 USD
Retailer 3$3,185 USD
Retailer 19$3,370 USD
Retailer 16$3,409 USD
Retailer 20$3,450 USD
Retailer 17$3,902 USD
Retailer 2$3,945 USD
Retailer 14$4,011 USD
Retailer 11$4,024 USD
Retailer 15$4,480 USD
Retailer 18$4,564 USD
Retailer 13$4,834 USD
MOH London$6,623 USD

33 data points across 20 retailers

20 retailers$2,702 USD to $6,623 USD

Retailer 1
-
$1,958 USD
Price last confirmed 15 days ago
Retailer 2
-
$2,168 USD
View
Price last confirmed 14 days ago
Retailer 3
-
$2,285 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$2,324 USD
View
Price last confirmed 16 days ago
Retailer 5
-
$2,520 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$2,702 USD
View
Retailer 7
-
$2,979 USD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$3,185 USD
View
B
Retailer 9
-
$3,370 USD
View
B
Retailer 10
-
$3,409 USD
View
B
Retailer 11
-
$3,450 USD
View
B
Retailer 12
-
$3,902 USD
View
B+
Retailer 13
-
$3,945 USD
View
B
Retailer 14
-
$4,011 USD
View
Retailer 15
-
$4,024 USD
View
Price last confirmed 21 days ago
B
Retailer 16
-
$4,480 USD
View
B
Retailer 17
-
$4,564 USD
View
B
Retailer 18
-
$4,834 USD
View
Retailer 19
-
$5,590 USD
View
Price last confirmed 42 days ago
Most Expensive
C
MOH London
7B76E8ED6 · Nov 2
$6,623 USD
£5,215 GBP
View
19 more retailers have this diamond
Prices start from $2,702 USDSave up to $3,921 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
$2,702 USD