Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 2566586850

Certificate GIA 2566586850

Diamond specifications and retailer prices

From $3,904 USD
HK$30,500 HKD
As of October 31, 2026
Save $4,983 USD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,887 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2566586850. Listed at 20 retailers as of October 30, 2026, with prices from $3,904 to $8,887, a $4,983 spread on the same certified stone. NZ Jewellers lists it at $8,887. 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
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566586850
Dimensions6.73 × 6.77 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.73 mm6.77 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566586850
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°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: Oct 31
Current: $8,887 USD|Low: $3,866 USD|High: $8,887 USD|Avg: $5,662 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 2$3,904 USD
Retailer 3$4,570 USD
Retailer 6$4,635 USD
Retailer 7$4,765 USD
Retailer 13$4,774 USD
Retailer 12$4,876 USD
Retailer 5$4,904 USD
Retailer 9$4,962 USD
Retailer 14$5,002 USD
Retailer 10$5,314 USD
Retailer 18$5,314 USD
Retailer 8$5,458 USD
Retailer 19$5,842 USD
Retailer 15$6,029 USD
Retailer 11$6,131 USD
Retailer 17$6,470 USD
Retailer 4$7,561 USD
Retailer 16$8,509 USD
NZ Jewellers$8,887 USD

17 data points across 19 retailers

20 retailers$3,904 USD to $8,887 USD

A
Cheapest Retailer
-
$3,904 USD
HK$30,500 HKD
A
Retailer 2
-
$4,570 USD
View
A
Retailer 3
-
$4,635 USD
View
B+
Retailer 4
-
$4,765 USD
View
A
Retailer 5
-
$4,774 USD
£3,759 GBP
View
A
Retailer 6
-
$4,876 USD
View
B+
Retailer 7
-
$4,904 USD
View
Final sale: no returns
B+
Retailer 8
-
$4,911 USD
SGD 6,636 SGD
View
B+
Retailer 9
-
$4,962 USD
SGD 6,705 SGD
View
B+
Retailer 10
-
$5,002 USD
£3,939 GBP
View
B+
Retailer 11
-
$5,314 USD
View
B+
Retailer 12
-
$5,314 USD
View
B+
Retailer 13
-
$5,458 USD
View
B+
Retailer 14
-
$5,842 USD
£4,600 GBP
View
B+
Retailer 15
-
$6,029 USD
€5,742 EUR
View
B+
Retailer 16
-
$6,131 USD
View
B+
Retailer 17
-
$6,470 USD
ZAR 104,531 ZAR
View
B
Retailer 18
-
$7,561 USD
View
B
Retailer 19
-
$8,509 USD
£6,700 GBP
View
Most Expensive
B
NZ Jewellers
0dc3ea34-5e5f-48e4-8a2b-43b6ab54d5f7 · Oct 30
$8,887 USD
View
19 more retailers have this diamond
Prices start from $3,904 USDSave up to $4,983 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
$3,904 USD