Oval|Natural|GIA

1.21ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 2231647775

Certificate GIA 2231647775

Diamond specifications and retailer prices

From $4,570 SGD
As of November 5, 2026
Save $4,720 SGD (51%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,190 SGD at NZ Jewellers · As of September 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2231647775. Listed at 26 retailers as of November 4, 2026, with a 103% 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.42°
Pavilion angle40.03°
OriginNatural
Grading LabGIA
CertificateGIA 2231647775
Dimensions8.04 × 5.90 × 3.79 mm
L/W Ratio1.36
Culet sizeNone
Top View
8.04 mm5.90 mm1.21 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2231647775
Side View
Table 60.0%Crown 41.42°Girdle: MED-VTKPavilion 40.03°Culet: NoneDepth 64.3%

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: $6,349 SGD|Low: $3,845 SGD|High: $9,429 SGD|Avg: $6,005 SGD
Retailer 1
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
November 6, 2026
Retailer 15$4,615 SGD
Retailer 4$4,664 SGD
Retailer 11$4,738 SGD
Retailer 3$4,891 SGD
Retailer 7$5,043 SGD
Retailer 6$5,613 SGD
Retailer 8$5,758 SGD
Retailer 14$5,768 SGD
Retailer 5$5,895 SGD
Retailer 13$6,236 SGD
Retailer 1$6,349 SGD
Retailer 9$7,136 SGD
Retailer 2$8,444 SGD
Retailer 12$8,460 SGD
Retailer 10$9,290 SGD

38 data points across 15 retailers

26 retailers$4,570 SGD to $9,290 SGD

B+
Cheapest Retailer
-
$4,570 SGD
B+
Retailer 2
-
$4,615 SGD
View
B+
Retailer 3
-
$4,664 SGD
View
B+
Retailer 4
-
$4,671 SGD
View
B+
Retailer 5
-
$4,738 SGD
View
B+
Retailer 6
-
$4,891 SGD
View
Final sale: no returns
Retailer 7
-
$5,002 SGD
View
Price last confirmed 72 days ago
B
Retailer 8
-
$5,043 SGD
View
B+
Retailer 9
-
$5,279 SGD
View
Retailer 10
-
$5,299 SGD
View
Price last confirmed 39 days ago
Retailer 11
-
$5,299 SGD
View
Price last confirmed 30 days ago
Retailer 12
-
$5,299 SGD
View
Price last confirmed 26 days ago
B
Retailer 13
-
$5,613 SGD
View
B+
Retailer 14
-
$5,758 SGD
View
B
Retailer 15
-
$5,768 SGD
View
B
Retailer 16
-
$5,883 SGD
View
B
Retailer 17
-
$5,883 SGD
View
Retailer 18
-
$5,895 SGD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$6,075 SGD
View
Retailer 20
-
$6,115 SGD
View
Price last confirmed 29 days ago
B
Retailer 21
-
$6,236 SGD
View
Retailer 22
-
$6,349 SGD
View
B
Retailer 23
-
$7,136 SGD
View
B
Retailer 24
-
$8,460 SGD
View
B
Retailer 25
-
$9,290 SGD
View
Most Expensive
NZ Jewellers
5d1df2ec-58a3-4d40-a3d1-ee69e4fa496a · Sep 30
$10,190 SGD
$7,951 USD
View
Price last confirmed 37 days ago
25 more retailers have this diamond
Prices start from $4,570 SGDSave up to $4,720 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
$4,570 SGD