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Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6542388209

Certificate GIA 6542388209

Diamond specifications and retailer prices

From $5,002 SGD
As of November 5, 2026
Save $4,304 SGD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,207 SGD at NZ Jewellers · As of October 23, 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 6542388209. Listed at 16 retailers as of November 4, 2026, with a 86% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542388209
Dimensions8.23 × 5.94 × 3.75 mm
L/W Ratio1.39
Top View
8.23 mm5.94 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542388209
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

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 5
Current: $10,207 SGD|Low: $5,002 SGD|High: $10,207 SGD|Avg: $6,451 SGD
NZ Jewellers
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
November 6, 2026
Retailer 13$5,002 SGD
Retailer 7$5,110 SGD
Retailer 3$5,407 SGD
Retailer 16$5,543 SGD
Retailer 2$5,683 SGD
Retailer 10$5,768 SGD
Retailer 5$5,858 SGD
Retailer 14$5,858 SGD
Retailer 15$5,858 SGD
Retailer 8$6,015 SGD
Retailer 4$6,129 SGD
Retailer 9$6,591 SGD
Retailer 6$6,759 SGD
Retailer 11$7,147 SGD
Retailer 12$9,306 SGD
NZ Jewellers$10,207 SGD

31 data points across 16 retailers

16 retailers$5,002 SGD to $9,306 SGD

B+
Cheapest Retailer
-
$5,002 SGD
B+
Retailer 2
-
$5,110 SGD
View
B+
Retailer 3
-
$5,407 SGD
View
Final sale: no returns
B+
Retailer 4
-
$5,543 SGD
View
B+
Retailer 5
-
$5,683 SGD
View
B+
Retailer 6
-
$5,768 SGD
View
Retailer 7
-
$5,858 SGD
View
Price last confirmed 12 days ago
Retailer 8
-
$5,858 SGD
View
Price last confirmed 12 days ago
Retailer 9
-
$5,858 SGD
View
Price last confirmed 11 days ago
Retailer 10
-
$6,015 SGD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$6,129 SGD
View
B+
Retailer 12
-
$6,591 SGD
View
Retailer 13
-
$6,759 SGD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$7,147 SGD
View
B
Retailer 15
-
$9,306 SGD
View
Most Expensive
NZ Jewellers
aa22a294-41c5-4041-bda9-a3e21c25432e · Oct 23
$10,207 SGD
$7,964 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from $5,002 SGDSave up to $4,304 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.

B+
1.21ct Oval
$5,002 SGD