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Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 5536189042

Certificate GIA 5536189042

Diamond specifications and retailer prices

From $5,247 AUD
As of November 5, 2026
Save $5,710 AUD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,957 AUD at MOH London · As of November 4, 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 D 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 5536189042. Listed at 13 retailers as of November 4, 2026, with prices from $5,247 to $10,957, a $5,710 spread on the same certified stone. MOH London lists it at $10,957. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.93°
OriginNatural
Grading LabGIA
CertificateGIA 5536189042
Dimensions8.81 × 6.06 × 3.70 mm
L/W Ratio1.45
Top View
8.81 mm6.06 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536189042
Side View
Table 56.0%Crown 32.93°Girdle: MED-THKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $10,957 AUD|Low: $5,247 AUD|High: $11,118 AUD|Avg: $7,354 AUD|-1.3%
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
November 6, 2026
Retailer 3$5,247 AUD
Retailer 13$5,499 AUD
Retailer 9$5,909 AUD
Retailer 11$6,175 AUD
Retailer 4$6,249 AUD
Retailer 10$6,549 AUD
Retailer 12$6,549 AUD
Retailer 7$6,750 AUD
Retailer 2$6,768 AUD
Retailer 5$6,952 AUD
Retailer 6$7,760 AUD
Retailer 8$8,415 AUD
MOH London$10,957 AUD

44 data points across 13 retailers

13 retailers$5,247 AUD to $10,957 AUD

A
Cheapest Retailer
-
$5,247 AUD
B+
Retailer 2
-
$5,499 AUD
View
B+
Retailer 3
-
$5,909 AUD
View
B+
Retailer 4
-
$6,175 AUD
View
Retailer 5
-
$6,249 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$6,549 AUD
View
B+
Retailer 7
-
$6,549 AUD
View
B+
Retailer 8
-
$6,750 AUD
View
B+
Retailer 9
-
$6,768 AUD
View
Retailer 10
-
$6,952 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$7,760 AUD
View
B
Retailer 12
-
$8,415 AUD
View
Most Expensive
B
MOH London
13A48B8EE · Nov 4
$10,957 AUD
£5,928 GBP
View
12 more retailers have this diamond
Prices start from $5,247 AUDSave up to $5,710 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
$5,247 AUD