Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 6542206911

Certificate GIA 6542206911

Diamond specifications and retailer prices

From $4,997 SGD
As of November 5, 2026
Save $1,182 SGD (19%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,543 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

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 6542206911. Listed at 11 retailers as of November 5, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 angle39.17°
Pavilion angle40.33°
OriginNatural
Grading LabGIA
CertificateGIA 6542206911
Dimensions8.12 × 5.86 × 3.84 mm
L/W Ratio1.39
Top View
8.12 mm5.86 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542206911
Side View
Table 57.0%Crown 39.17°Girdle: ThickPavilion 40.33°Culet: NoneDepth 65.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $9,543 SGD|Low: $4,953 SGD|High: $9,638 SGD|Avg: $6,111 SGD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$4,980 SGD
Retailer 4$4,997 SGD
Retailer 7$5,306 SGD
Retailer 5$5,358 SGD
Retailer 8$5,478 SGD
Retailer 11$5,478 SGD
Retailer 10$5,658 SGD
Retailer 3$5,899 SGD
Retailer 2$6,179 SGD
Retailer 6$9,208 SGD
NZ Jewellers$9,543 SGD

38 data points across 11 retailers

11 retailers$4,997 SGD to $6,179 SGD

B+
Retailer 1
-
$4,980 SGD
Price last confirmed 7 days ago
A
Retailer 2
-
$4,997 SGD
View
Retailer 3
-
$5,306 SGD
View
Price last confirmed 6 days ago
Retailer 4
-
$5,358 SGD
View
Price last confirmed 7 days ago
Retailer 5
-
$5,478 SGD
View
Price last confirmed 8 days ago
Retailer 6
-
$5,478 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$5,658 SGD
View
Retailer 8
-
$5,899 SGD
View
Price last confirmed 28 days ago
B+
Retailer 9
-
$6,179 SGD
View
Retailer 10
-
$9,208 SGD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
fd3dd819-701e-4061-b615-8a3a3a1da941 · Oct 27
$9,543 SGD
$7,446 USD
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from $4,997 SGDSave up to $1,182 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
$4,997 SGD