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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6545974485

Certificate GIA 6545974485

Diamond specifications and retailer prices

From $3,932 AUD
As of November 6, 2026
Save $5,707 AUD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,639 AUD 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 $3,932 to $9,639, a $5,707 spread on the same certified stone. MOH London lists it at $9,639. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,639 AUD|Low: $2,850 AUD|High: $9,691 AUD|Avg: $4,508 AUD|+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$2,850 AUD
Retailer 5$3,155 AUD
Retailer 9$3,237 AUD
Retailer 4$3,326 AUD
Retailer 6$3,382 AUD
Retailer 8$3,598 AUD
Retailer 10$3,668 AUD
Retailer 12$4,336 AUD
Retailer 3$4,635 AUD
Retailer 19$4,905 AUD
Retailer 16$4,961 AUD
Retailer 20$5,021 AUD
Retailer 17$5,679 AUD
Retailer 2$5,742 AUD
Retailer 14$5,838 AUD
Retailer 11$5,857 AUD
Retailer 15$6,520 AUD
Retailer 18$6,642 AUD
Retailer 13$7,035 AUD
MOH London$9,639 AUD

33 data points across 20 retailers

20 retailers$3,932 AUD to $9,639 AUD

Retailer 1
-
$2,850 AUD
Price last confirmed 15 days ago
Retailer 2
-
$3,155 AUD
View
Price last confirmed 14 days ago
Retailer 3
-
$3,326 AUD
View
Price last confirmed 15 days ago
Retailer 4
-
$3,382 AUD
View
Price last confirmed 16 days ago
Retailer 5
-
$3,668 AUD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$3,932 AUD
View
Retailer 7
-
$4,336 AUD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$4,635 AUD
View
B
Retailer 9
-
$4,905 AUD
View
B
Retailer 10
-
$4,961 AUD
View
B
Retailer 11
-
$5,021 AUD
View
B
Retailer 12
-
$5,679 AUD
View
B+
Retailer 13
-
$5,742 AUD
View
B
Retailer 14
-
$5,838 AUD
View
Retailer 15
-
$5,857 AUD
View
Price last confirmed 21 days ago
B
Retailer 16
-
$6,520 AUD
View
B
Retailer 17
-
$6,642 AUD
View
B
Retailer 18
-
$7,035 AUD
View
Retailer 19
-
$8,136 AUD
View
Price last confirmed 42 days ago
Most Expensive
C
MOH London
7B76E8ED6 · Nov 2
$9,639 AUD
£5,215 GBP
View
19 more retailers have this diamond
Prices start from $3,932 AUDSave up to $5,707 AUD

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
$3,932 AUD