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Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

GD • K/SI1 • GIA 6462181862

Certificate GIA 6462181862

Diamond specifications and retailer prices

From €2,625 EUR
As of November 6, 2026
Save €3,002 EUR (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €5,627 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6462181862. Listed at 10 retailers as of November 4, 2026, with prices from €2,625 to €5,627, a €3,002 spread on the same certified stone. MOH London lists it at €5,627. 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

1.51
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6462181862
Dimensions7.28 × 6.05 × 4.25 mm
L/W Ratio1.20
Top View
7.28 mm6.05 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6462181862
Side View
Table 53.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.2%

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: €5,627 EUR|Low: €2,590 EUR|High: €5,710 EUR|Avg: €3,722 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5€2,625 EUR
Retailer 6€2,995 EUR
Retailer 8€3,229 EUR
Retailer 7€3,374 EUR
Retailer 4€3,493 EUR
Retailer 9€3,645 EUR
Retailer 2€3,927 EUR
Retailer 3€4,118 EUR
MOH London€5,627 EUR

40 data points across 9 retailers

10 retailers€2,625 EUR to €5,627 EUR

B+
Cheapest Retailer
-
€2,625 EUR
B+
Retailer 2
-
€2,995 EUR
View
B+
Retailer 3
-
€3,229 EUR
View
Retailer 4
-
€3,374 EUR
View
Price last confirmed 30 days ago
B+
Retailer 5
-
€3,493 EUR
View
B
Retailer 6
-
€3,504 EUR
View
B
Retailer 7
-
€3,645 EUR
View
B
Retailer 8
-
€3,927 EUR
View
B
Retailer 9
-
€4,118 EUR
View
Most Expensive
C
MOH London
BD868D2F7 · Nov 4
€5,627 EUR
£4,947 GBP
View
9 more retailers have this diamond
Prices start from €2,625 EURSave up to €3,002 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+
1.51ct Heart
€2,625 EUR