Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

VG • D/SI1 • GIA 1525373512

Certificate GIA 1525373512

Diamond specifications and retailer prices

From €4,092 EUR
As of November 6, 2026
Save €5,024 EUR (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €9,116 EUR 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: €9,116 EUR|Low: €4,058 EUR|High: €9,116 EUR|Avg: €6,003 EUR
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€4,092 EUR
Retailer 6€4,862 EUR
Retailer 3€5,145 EUR
Retailer 8€5,178 EUR
Retailer 2€5,287 EUR
Retailer 5€5,416 EUR
Retailer 11€5,575 EUR
Retailer 12€5,575 EUR
Retailer 4€5,586 EUR
Retailer 7€5,608 EUR
Retailer 14€6,432 EUR
Retailer 9€6,649 EUR
Retailer 10€8,007 EUR
NZ Jewellers€9,116 EUR

41 data points across 14 retailers

19 retailers€4,092 EUR to €9,116 EUR

B+
Cheapest Retailer
-
€4,092 EUR
B
Retailer 2
-
€4,862 EUR
View
Retailer 3
-
€4,986 EUR
View
Price last confirmed 81 days ago
B
Retailer 4
-
€5,145 EUR
View
Final sale: no returns
B
Retailer 5
-
€5,178 EUR
View
B
Retailer 6
-
€5,186 EUR
View
B
Retailer 7
-
€5,287 EUR
View
Retailer 8
-
€5,416 EUR
View
Price last confirmed 33 days ago
B
Retailer 9
-
€5,575 EUR
View
B
Retailer 10
-
€5,575 EUR
View
B
Retailer 11
-
€5,586 EUR
View
B
Retailer 12
-
€5,590 EUR
View
B
Retailer 13
-
€5,608 EUR
View
Retailer 14
-
€6,288 EUR
View
Price last confirmed 66 days ago
B
Retailer 15
-
€6,432 EUR
View
B
Retailer 16
-
€6,649 EUR
View
B
Retailer 17
-
€8,007 EUR
View
B
Retailer 18
-
€9,116 EUR
View
Most Expensive
NZ Jewellers
2ec539e1-1b40-40c3-9c86-2a9cdc662e84 · Oct 17
€9,116 EUR
$10,178 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from €4,092 EURSave up to €5,024 EUR

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
€4,092 EUR