Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 2557387267

Certificate GIA 2557387267

Diamond specifications and retailer prices

From $2,739 USD
HK$21,400 HKD
As of November 2, 2026
Save $3,725 USD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,927 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2557387267. Listed at 11 retailers as of November 2, 2026, with a 136% 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
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557387267
Dimensions6.73 × 6.79 × 4.22 mm
L/W Ratio1.01
Top View
6.73 mm6.79 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557387267
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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 2
Current: $6,464 USD|Low: $2,739 USD|High: $6,850 USD|Avg: $4,322 USD|-5.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$2,739 USD
Retailer 3$3,190 USD
Retailer 6$3,344 USD
Retailer 8$3,507 USD
Retailer 7$3,859 USD
Retailer 2$4,321 USD
Retailer 4$6,204 USD
NZ Jewellers$6,464 USD

44 data points across 8 retailers

11 retailers$2,739 USD to $6,464 USD

A
Cheapest Retailer
-
$2,739 USD
HK$21,400 HKD
A
Retailer 2
-
$3,190 USD
€3,038 EUR
View
A
Retailer 3
-
$3,344 USD
View
A
Retailer 4
-
$3,507 USD
View
Final sale: no returns
Retailer 5
-
$3,859 USD
SGD 5,215 SGD
View
Price last confirmed 7 days ago
Retailer 6
-
$3,932 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$3,932 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
$4,321 USD
€4,115 EUR
View
B+
Retailer 9
-
$6,204 USD
£4,885 GBP
View
B+
Retailer 10
-
$6,464 USD
View
Most Expensive
NZ Jewellers
c49cbe1c-1fe2-4f6b-9b11-1b00cdaf986d · Sep 28
$6,927 USD
View
Price last confirmed 35 days ago
10 more retailers have this diamond
Prices start from $2,739 USDSave up to $3,725 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
$2,739 USD