Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2508189179

Certificate GIA 2508189179

Diamond specifications and retailer prices

From $1,996 USD
As of November 6, 2026
Save $3,599 USD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,595 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2508189179. Listed at 20 retailers as of November 5, 2026, with prices from $1,996 to $5,595, a $3,599 spread on the same certified stone. NZ Jewellers lists it at $5,595. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2508189179
Dimensions6.69 × 7.23 × 4.20 mm
L/W Ratio1.08
Top View
6.69 mm7.23 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2508189179
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,595 USD|Low: $1,971 USD|High: $5,595 USD|Avg: $3,044 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
November 6, 2026
Retailer 15$1,996 USD
Retailer 16$2,362 USD
Retailer 5$2,397 USD
Retailer 17$2,470 USD
Retailer 3$2,635 USD
Retailer 6$2,641 USD
Retailer 7$2,676 USD
Retailer 11$2,771 USD
Retailer 4$2,779 USD
Retailer 10$2,817 USD
Retailer 12$2,832 USD
Retailer 8$2,957 USD
Retailer 18$2,998 USD
Retailer 9$3,064 USD
Retailer 13$3,266 USD
Retailer 2$3,323 USD
Retailer 14$4,676 USD
NZ Jewellers$5,595 USD

43 data points across 18 retailers

20 retailers$1,996 USD to $5,595 USD

B+
Cheapest Retailer
-
$1,996 USD
B+
Retailer 2
-
$2,362 USD
View
B+
Retailer 3
-
$2,397 USD
View
B
Retailer 4
-
$2,470 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,592 USD
View
B+
Retailer 6
-
$2,635 USD
View
Retailer 7
-
$2,676 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,676 USD
View
B
Retailer 9
-
$2,771 USD
View
B
Retailer 10
-
$2,779 USD
View
B
Retailer 11
-
$2,817 USD
View
B+
Retailer 12
-
$2,832 USD
View
B
Retailer 13
-
$2,957 USD
View
Retailer 14
-
$2,998 USD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$3,064 USD
View
B
Retailer 16
-
$3,088 USD
View
B
Retailer 17
-
$3,266 USD
View
B
Retailer 18
-
$3,323 USD
View
B
Retailer 19
-
$4,676 USD
View
Most Expensive
B
NZ Jewellers
f3b42846-f509-4876-a79d-a14152981848 · Nov 5
$5,595 USD
View
19 more retailers have this diamond
Prices start from $1,996 USDSave up to $3,599 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 Heart
$1,996 USD