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Round|Natural|GIA

1.21ct H I1 Round Natural Diamond

EX • H/I1 • GIA 1518679685

Certificate GIA 1518679685

Diamond specifications and retailer prices

From $1,856 USD
HK$14,500 HKD
As of November 1, 2026
Save $1,161 USD (38%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,073 USD at NZ Jewellers · As of September 28, 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 1518679685. Listed at 10 retailers as of November 1, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1518679685
Dimensions6.77 × 6.81 × 4.25 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural, Natural
Top View
6.77 mm6.81 mm1.21 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518679685
Side View
Table 58.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.7%

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 1
Current: $1,950 USD|Low: $1,843 USD|High: $3,038 USD|Avg: $2,306 USD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3$1,856 USD
Retailer 1$1,950 USD
Retailer 4$2,286 USD
Retailer 5$2,305 USD
Retailer 2$3,017 USD

44 data points across 5 retailers

10 retailers$1,856 USD to $3,017 USD

A
Cheapest Retailer
-
$1,856 USD
HK$14,500 HKD
A
Retailer 2
-
$1,950 USD
₹185,745 INR
View
B+
Retailer 3
-
$2,286 USD
View
B+
Retailer 4
-
$2,305 USD
View
Retailer 5
-
$2,426 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$2,426 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$2,538 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$2,800 USD
View
Price last confirmed 23 days ago
B
Retailer 9
-
$3,017 USD
€2,873 EUR
View
Most Expensive
NZ Jewellers
beb6df26-c2f2-4b07-bbd9-c79a1c1196e8 · Sep 28
$5,073 USD
View
Price last confirmed 35 days ago
9 more retailers have this diamond
Prices start from $1,856 USDSave up to $1,161 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 Round
$1,856 USD