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Round|Natural|GIA

1.21ct H I1 Round Natural Diamond

EX • H/I1 • GIA 1558829279

Certificate GIA 1558829279

Diamond specifications and retailer prices

From $2,214 USD
HK$17,300 HKD
As of November 1, 2026
Save $3,826 USD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,040 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1558829279. Listed at 11 retailers as of October 30, 2026, with prices from $2,214 to $6,040, a $3,826 spread on the same certified stone. NZ Jewellers lists it at $6,040. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558829279
Dimensions6.75 × 6.77 × 4.23 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.75 mm6.77 mm1.21 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558829279
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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 1
Current: $6,040 USD|Low: $2,202 USD|High: $6,040 USD|Avg: $3,370 USD|+11.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$2,214 USD
Retailer 3$2,233 USD
Retailer 8$2,588 USD
Retailer 5$2,809 USD
Retailer 7$2,889 USD
Retailer 6$3,000 USD
Retailer 10$3,333 USD
Retailer 2$3,367 USD
Retailer 9$4,286 USD
NZ Jewellers$6,040 USD

44 data points across 10 retailers

11 retailers$2,214 USD to $6,040 USD

B+
Cheapest Retailer
-
$2,214 USD
HK$17,300 HKD
B+
Retailer 2
-
$2,233 USD
₹212,619 INR
View
B+
Retailer 3
-
$2,588 USD
View
B+
Retailer 4
-
$2,809 USD
View
B+
Retailer 5
-
$2,889 USD
View
Retailer 6
-
$2,889 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$3,000 USD
View
B
Retailer 8
-
$3,333 USD
View
B
Retailer 9
-
$3,367 USD
€3,207 EUR
View
B
Retailer 10
-
$4,286 USD
View
Most Expensive
B
NZ Jewellers
1f6f2809-a65a-41a5-a39b-11679973145e · Oct 30
$6,040 USD
View
10 more retailers have this diamond
Prices start from $2,214 USDSave up to $3,826 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 Round
$2,214 USD