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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 $4,620 SGD
As of November 5, 2026
Save $5,028 SGD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,649 SGD 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 $4,620 to $9,649, a $5,028 spread on the same certified stone. MOH London lists it at $9,649. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $9,649 SGD|Low: $4,620 SGD|High: $9,790 SGD|Avg: $6,476 SGD|-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$4,620 SGD
Retailer 13$4,842 SGD
Retailer 9$5,203 SGD
Retailer 11$5,438 SGD
Retailer 4$5,503 SGD
Retailer 10$5,767 SGD
Retailer 12$5,767 SGD
Retailer 7$5,944 SGD
Retailer 2$5,959 SGD
Retailer 5$6,122 SGD
Retailer 6$6,833 SGD
Retailer 8$7,410 SGD
MOH London$9,649 SGD

44 data points across 13 retailers

13 retailers$4,620 SGD to $9,649 SGD

A
Cheapest Retailer
-
$4,620 SGD
B+
Retailer 2
-
$4,842 SGD
View
B+
Retailer 3
-
$5,203 SGD
View
B+
Retailer 4
-
$5,438 SGD
View
Retailer 5
-
$5,503 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$5,767 SGD
View
B+
Retailer 7
-
$5,767 SGD
View
B+
Retailer 8
-
$5,944 SGD
View
B+
Retailer 9
-
$5,959 SGD
View
Retailer 10
-
$6,122 SGD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$6,833 SGD
View
B
Retailer 12
-
$7,410 SGD
View
Most Expensive
B
MOH London
13A48B8EE · Nov 4
$9,649 SGD
£5,928 GBP
View
12 more retailers have this diamond
Prices start from $4,620 SGDSave up to $5,028 SGD

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
$4,620 SGD