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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 5543326587

Certificate GIA 5543326587

Diamond specifications and retailer prices

From $3,248 SGD
As of November 6, 2026
Save $4,084 SGD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,659 SGD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5543326587. Listed at 21 retailers as of November 4, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.12°
Pavilion angle36.71°
OriginNatural
Grading LabGIA
CertificateGIA 5543326587
Dimensions8.32 × 5.89 × 3.76 mm
L/W Ratio1.41
Top View
8.32 mm5.89 mm1.21 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543326587
Side View
Table 60.0%Crown 41.12°Girdle: STK-THKPavilion 36.71°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,659 SGD|Low: $3,214 SGD|High: $7,756 SGD|Avg: $4,827 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 20$3,248 SGD
Retailer 12$3,560 SGD
Retailer 17$3,790 SGD
Retailer 21$3,838 SGD
Retailer 8$3,902 SGD
Retailer 7$4,058 SGD
Retailer 5$4,091 SGD
Retailer 15$4,191 SGD
Retailer 9$4,251 SGD
Retailer 2$4,264 SGD
Retailer 11$4,396 SGD
Retailer 13$4,514 SGD
Retailer 4$4,565 SGD
Retailer 10$4,834 SGD
Retailer 14$4,910 SGD
Retailer 3$5,073 SGD
Retailer 19$5,144 SGD
Retailer 16$5,366 SGD
Retailer 6$6,239 SGD
Retailer 18$7,332 SGD
NZ Jewellers$7,659 SGD

30 data points across 21 retailers

21 retailers$3,248 SGD to $7,332 SGD

B+
Cheapest Retailer
-
$3,248 SGD
B+
Retailer 2
-
$3,560 SGD
View
B+
Retailer 3
-
$3,790 SGD
View
B+
Retailer 4
-
$3,838 SGD
View
B+
Retailer 5
-
$3,902 SGD
View
B+
Retailer 6
-
$4,058 SGD
View
Final sale: no returns
B
Retailer 7
-
$4,091 SGD
View
B+
Retailer 8
-
$4,191 SGD
View
B
Retailer 9
-
$4,251 SGD
View
B
Retailer 10
-
$4,264 SGD
View
Retailer 11
-
$4,396 SGD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$4,514 SGD
View
Retailer 13
-
$4,565 SGD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$4,834 SGD
View
Retailer 15
-
$4,910 SGD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$5,073 SGD
View
B
Retailer 17
-
$5,144 SGD
View
B
Retailer 18
-
$5,366 SGD
View
B
Retailer 19
-
$6,239 SGD
View
B
Retailer 20
-
$7,332 SGD
View
Most Expensive
NZ Jewellers
35f8d467-93a2-4b2e-9f5a-cc8e6eef1d4b · Oct 30
$7,659 SGD
$5,976 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $3,248 SGDSave up to $4,084 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
$3,248 SGD