Oval|Natural|GIA

1.21ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 3555079183

Certificate GIA 3555079183

Diamond specifications and retailer prices

From $2,688 USD
As of November 6, 2026
Save $3,317 USD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,414 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555079183. Listed at 17 retailers as of November 1, 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. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555079183
Dimensions8.10 × 5.92 × 3.78 mm
L/W Ratio1.37
Top View
8.10 mm5.92 mm1.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555079183
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,414 USD|Low: $2,688 USD|High: $6,439 USD|Avg: $4,012 USD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$2,688 USD
Retailer 2$2,785 USD
Retailer 5$3,189 USD
Retailer 9$3,283 USD
Retailer 4$3,681 USD
Retailer 7$3,702 USD
Retailer 3$3,731 USD
Retailer 8$4,163 USD
Retailer 10$6,005 USD
Queensmith$6,414 USD

31 data points across 10 retailers

17 retailers$2,688 USD to $6,005 USD

A
Cheapest Retailer
-
$2,688 USD
A
Retailer 2
-
$2,785 USD
View
A
Retailer 3
-
$3,189 USD
View
A
Retailer 4
-
$3,283 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,357 USD
View
B+
Retailer 6
-
$3,476 USD
View
Retailer 7
-
$3,591 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,591 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$3,681 USD
View
B+
Retailer 10
-
$3,702 USD
View
Retailer 11
-
$3,729 USD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$3,731 USD
View
Retailer 13
-
$4,144 USD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$4,163 USD
View
B
Retailer 15
-
$6,005 USD
View
Retailer 16
-
$6,257 USD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
3555079183 · Oct 28
$6,414 USD
£5,050 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $2,688 USDSave up to $3,317 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.

A
1.21ct Oval
$2,688 USD