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Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 7458197631

Certificate GIA 7458197631

Diamond specifications and retailer prices

From €1,860 EUR
$2,086 USD
As of October 30, 2026
Save €1,767 EUR (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,627 EUR at MOH London · As of October 29, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7458197631. Listed at 12 retailers as of October 29, 2026, with prices from €1,860 to €3,627, a €1,767 spread on the same certified stone. MOH London lists it at €3,627. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7458197631
Dimensions6.47 × 5.84 × 3.91 mm
L/W Ratio1.11
Top View
6.47 mm5.84 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7458197631
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.0%

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: Oct 30
Current: €3,627 EUR|Low: €1,550 EUR|High: €3,651 EUR|Avg: €2,332 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7€1,860 EUR
Retailer 6€1,900 EUR
Retailer 9€1,996 EUR
Retailer 5€2,060 EUR
Retailer 4€2,084 EUR
Retailer 10€2,259 EUR
Retailer 2€2,531 EUR
Retailer 8€2,544 EUR
Retailer 3€2,572 EUR
MOH London€3,627 EUR

35 data points across 10 retailers

12 retailers€1,860 EUR to €3,627 EUR

B+
Cheapest Retailer
-
€1,860 EUR
$2,086 USD
B
Retailer 2
-
€1,900 EUR
$2,131 USD
View
Final sale: no returns
B
Retailer 3
-
€1,996 EUR
$2,239 USD
View
B
Retailer 4
-
€2,060 EUR
$2,310 USD
View
B
Retailer 5
-
€2,076 EUR
$2,329 USD
View
B
Retailer 6
-
€2,084 EUR
£1,840 GBP
View
B
Retailer 7
-
€2,183 EUR
$2,449 USD
View
B
Retailer 8
-
€2,259 EUR
A$3,898 AUD
View
B
Retailer 9
-
€2,531 EUR
ZAR 45,857 ZAR
View
Retailer 10
-
€2,544 EUR
A$4,390 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
€2,572 EUR
View
Most Expensive
C
MOH London
CA0DCDDA5 · Oct 29
€3,627 EUR
£3,203 GBP
View
11 more retailers have this diamond
Prices start from €1,860 EURSave up to €1,767 EUR

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
€1,860 EUR