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Heart|Natural|GIA

1.21ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6137692565

Certificate GIA 6137692565

Diamond specifications and retailer prices

From €1,876 EUR
As of November 6, 2026
Save €978 EUR (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €2,854 EUR at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded H 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 6137692565. Listed at 4 retailers as of November 6, 2026, with prices from €1,876 to €2,854, a €978 spread on the same certified stone. 77 Diamonds lists it at €2,854. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6137692565
Dimensions5.75 × 5.63 × 4.32 mm
L/W Ratio1.02
Top View
5.75 mm5.63 mm1.21 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6137692565
Side View
Table 56.0%CrownGirdle: VTK-EXTPavilionCulet: NoneDepth 76.7%

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: Nov 6
Current: €2,854 EUR|Low: €1,876 EUR|High: €2,885 EUR|Avg: €2,390 EUR|+1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2€1,876 EUR
Retailer 3€2,078 EUR
Retailer 4€2,739 EUR
77 Diamonds€2,854 EUR

36 data points across 4 retailers

4 retailers€1,876 EUR to €2,854 EUR

B+
Cheapest Retailer
-
€1,876 EUR
B+
Retailer 2
-
€1,942 EUR
View
B+
Retailer 3
-
€2,036 EUR
View
Most Expensive
B
77 Diamonds
CUSMBK2MYAZFQ · Nov 6
€2,854 EUR
£2,509 GBP
View
3 more retailers have this diamond
Prices start from €1,876 EURSave up to €978 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
€1,876 EUR