Oval|Natural|GIA

1.21ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 3555079183

Certificate GIA 3555079183

Diamond specifications and retailer prices

From $3,912 AUD
As of November 6, 2026
Save $4,828 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,334 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555079183. Listed at 17 retailers as of November 1, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555079183
Dimensions8.10 × 5.92 × 3.78 mm
L/W Ratio1.37
Top View
8.10 mm5.92 mm1.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555079183
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,334 AUD|Low: $3,912 AUD|High: $9,371 AUD|Avg: $5,839 AUD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$3,912 AUD
Retailer 2$4,053 AUD
Retailer 5$4,641 AUD
Retailer 9$4,778 AUD
Retailer 4$5,357 AUD
Retailer 7$5,388 AUD
Retailer 3$5,430 AUD
Retailer 8$6,059 AUD
Retailer 10$8,740 AUD
Queensmith$9,334 AUD

31 data points across 10 retailers

17 retailers$3,912 AUD to $8,740 AUD

A
Cheapest Retailer
-
$3,912 AUD
A
Retailer 2
-
$4,053 AUD
View
A
Retailer 3
-
$4,641 AUD
View
A
Retailer 4
-
$4,778 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,886 AUD
View
B+
Retailer 6
-
$5,059 AUD
View
Retailer 7
-
$5,226 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$5,226 AUD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$5,357 AUD
View
B+
Retailer 10
-
$5,388 AUD
View
Retailer 11
-
$5,427 AUD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$5,430 AUD
View
Retailer 13
-
$6,031 AUD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$6,059 AUD
View
B
Retailer 15
-
$8,740 AUD
View
Retailer 16
-
$9,106 AUD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
3555079183 · Oct 28
$9,334 AUD
£5,050 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $3,912 AUDSave up to $4,828 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.

A
1.21ct Oval
$3,912 AUD