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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 6435511839

Certificate GIA 6435511839

Diamond specifications and retailer prices

From €3,012 EUR
As of November 6, 2026
Save €3,345 EUR (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €6,357 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6435511839. Listed at 6 retailers as of November 4, 2026, with prices from €3,012 to €6,357, a €3,345 spread on the same certified stone. MOH London lists it at €6,357. 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

1.70
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.16°
Pavilion angle39.78°
OriginNatural
Grading LabGIA
CertificateGIA 6435511839
Dimensions6.82 × 8.11 × 5.00 mm
L/W Ratio1.19
Top View
6.82 mm8.11 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6435511839
Side View
Table 62.0%Crown 42.16°Girdle: THN-VTKPavilion 39.78°Culet: NoneDepth 61.6%

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: Nov 6
Current: €6,357 EUR|Low: €2,953 EUR|High: €6,807 EUR|Avg: €4,277 EUR|-6.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3€3,012 EUR
Retailer 4€3,318 EUR
Retailer 5€3,467 EUR
Retailer 2€4,054 EUR
Retailer 6€4,257 EUR
MOH London€6,357 EUR

44 data points across 6 retailers

6 retailers€3,012 EUR to €6,357 EUR

A
Cheapest Retailer
-
€3,012 EUR
A
Retailer 2
-
€3,318 EUR
View
B+
Retailer 3
-
€3,467 EUR
View
B+
Retailer 4
-
€4,054 EUR
View
Retailer 5
-
€4,257 EUR
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
F3F72E178 · Nov 4
€6,357 EUR
£5,589 GBP
View
5 more retailers have this diamond
Prices start from €3,012 EURSave up to €3,345 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.

A
1.70ct Heart
€3,012 EUR