Oval|Natural|GIA

1.21ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 2557610799

Certificate GIA 2557610799

Diamond specifications and retailer prices

From $2,256 USD
As of November 5, 2026
Save $1,889 USD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,145 USD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557610799. Listed at 14 retailers as of November 5, 2026, with prices from $2,256 to $4,145, a $1,889 spread on the same certified stone. Helzberg Diamonds lists it at $4,145. 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
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.61°
Pavilion angle39.97°
OriginNatural
Grading LabGIA
CertificateGIA 2557610799
Dimensions8.34 × 5.99 × 3.72 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.34 mm5.99 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557610799
Side View
Table 60.0%Crown 38.61°Girdle: STK-THKPavilion 39.97°Culet: NoneDepth 62.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $4,145 USD|Low: $2,243 USD|High: $4,453 USD|Avg: $2,951 USD|-6.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 9$2,256 USD
Retailer 12$2,273 USD
Retailer 2$2,371 USD
Retailer 11$2,412 USD
Retailer 8$2,581 USD
Retailer 5$2,627 USD
Retailer 3$2,839 USD
Retailer 10$2,900 USD
Retailer 4$2,966 USD
Retailer 6$3,026 USD
Retailer 7$3,099 USD
Retailer 13$3,956 USD
Helzberg Diamonds$4,145 USD

25 data points across 13 retailers

14 retailers$2,256 USD to $4,145 USD

A
Cheapest Retailer
-
$2,256 USD
A
Retailer 2
-
$2,273 USD
View
A
Retailer 3
-
$2,371 USD
View
A
Retailer 4
-
$2,412 USD
View
A
Retailer 5
-
$2,581 USD
View
A
Retailer 6
-
$2,627 USD
View
A
Retailer 7
-
$2,839 USD
View
A
Retailer 8
-
$2,900 USD
View
A
Retailer 9
-
$2,966 USD
View
A
Retailer 10
-
$3,026 USD
View
B+
Retailer 11
-
$3,099 USD
View
B+
Retailer 12
-
$3,154 USD
View
B+
Retailer 13
-
$3,956 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRILLNMHGNPP · Nov 6
$4,145 USD
View
13 more retailers have this diamond
Prices start from $2,256 USDSave up to $1,889 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
$2,256 USD