Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

VG • D/SI1 • GIA 1525373512

Certificate GIA 1525373512

Diamond specifications and retailer prices

From $4,569 USD
As of November 6, 2026
Save $5,609 USD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,178 USD 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
Color
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: $10,178 USD|Low: $4,531 USD|High: $10,178 USD|Avg: $6,702 USD
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$4,569 USD
Retailer 6$5,428 USD
Retailer 3$5,744 USD
Retailer 8$5,781 USD
Retailer 2$5,903 USD
Retailer 5$6,047 USD
Retailer 11$6,224 USD
Retailer 12$6,224 USD
Retailer 4$6,237 USD
Retailer 7$6,261 USD
Retailer 14$7,181 USD
Retailer 9$7,424 USD
Retailer 10$8,940 USD
NZ Jewellers$10,178 USD

41 data points across 14 retailers

19 retailers$4,569 USD to $10,178 USD

B+
Cheapest Retailer
-
$4,569 USD
B
Retailer 2
-
$5,428 USD
View
Retailer 3
-
$5,567 USD
View
Price last confirmed 81 days ago
B
Retailer 4
-
$5,744 USD
View
Final sale: no returns
B
Retailer 5
-
$5,781 USD
View
B
Retailer 6
-
$5,790 USD
View
B
Retailer 7
-
$5,903 USD
View
Retailer 8
-
$6,047 USD
View
Price last confirmed 33 days ago
B
Retailer 9
-
$6,224 USD
View
B
Retailer 10
-
$6,224 USD
View
B
Retailer 11
-
$6,237 USD
View
B
Retailer 12
-
$6,241 USD
View
B
Retailer 13
-
$6,261 USD
View
Retailer 14
-
$7,021 USD
View
Price last confirmed 66 days ago
B
Retailer 15
-
$7,181 USD
View
B
Retailer 16
-
$7,424 USD
View
B
Retailer 17
-
$8,940 USD
View
B
Retailer 18
-
$10,178 USD
View
Most Expensive
NZ Jewellers
2ec539e1-1b40-40c3-9c86-2a9cdc662e84 · Oct 17
$10,178 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $4,569 USDSave up to $5,609 USD

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
$4,569 USD