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Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

VG • D/SI1 • GIA 1525373512

Certificate GIA 1525373512

Diamond specifications and retailer prices

From $5,856 SGD
As of November 6, 2026
Save $7,188 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,044 SGD at NZ Jewellers · As of October 17, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1525373512. Listed at 19 retailers as of November 5, 2026, with a 123% 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525373512
Dimensions8.12 × 5.86 × 3.79 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
8.12 mm5.86 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525373512
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.7%

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 6
Current: $13,044 SGD|Low: $5,807 SGD|High: $13,044 SGD|Avg: $8,589 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
November 6, 2026
Retailer 13$5,856 SGD
Retailer 6$6,957 SGD
Retailer 3$7,362 SGD
Retailer 8$7,409 SGD
Retailer 2$7,565 SGD
Retailer 5$7,750 SGD
Retailer 11$7,977 SGD
Retailer 12$7,977 SGD
Retailer 4$7,993 SGD
Retailer 7$8,024 SGD
Retailer 14$9,203 SGD
Retailer 9$9,515 SGD
Retailer 10$11,458 SGD
NZ Jewellers$13,044 SGD

41 data points across 14 retailers

19 retailers$5,856 SGD to $13,044 SGD

B+
Cheapest Retailer
-
$5,856 SGD
B
Retailer 2
-
$6,957 SGD
View
Retailer 3
-
$7,135 SGD
View
Price last confirmed 81 days ago
B
Retailer 4
-
$7,362 SGD
View
Final sale: no returns
B
Retailer 5
-
$7,409 SGD
View
B
Retailer 6
-
$7,420 SGD
View
B
Retailer 7
-
$7,565 SGD
View
Retailer 8
-
$7,750 SGD
View
Price last confirmed 33 days ago
B
Retailer 9
-
$7,977 SGD
View
B
Retailer 10
-
$7,977 SGD
View
B
Retailer 11
-
$7,993 SGD
View
B
Retailer 12
-
$7,998 SGD
View
B
Retailer 13
-
$8,024 SGD
View
Retailer 14
-
$8,998 SGD
View
Price last confirmed 66 days ago
B
Retailer 15
-
$9,203 SGD
View
B
Retailer 16
-
$9,515 SGD
View
B
Retailer 17
-
$11,458 SGD
View
B
Retailer 18
-
$13,044 SGD
View
Most Expensive
NZ Jewellers
2ec539e1-1b40-40c3-9c86-2a9cdc662e84 · Oct 17
$13,044 SGD
$10,178 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $5,856 SGDSave up to $7,188 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
$5,856 SGD