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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 6431422487

Certificate GIA 6431422487

Diamond specifications and retailer prices

From €3,702 EUR
As of November 6, 2026
Save €3,963 EUR (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €7,665 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 6431422487. Listed at 19 retailers as of November 5, 2026, with prices from €3,702 to €7,665, a €3,963 spread on the same certified stone. NZ Jewellers lists it at €7,665. 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
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle40.7°
Pavilion angle41.9°
OriginNatural
Grading LabGIA
CertificateGIA 6431422487
Dimensions8.06 × 7.23 × 4.33 mm
L/W Ratio1.11
Top View
8.06 mm7.23 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431422487
Side View
Table 56.0%Crown 40.7°Girdle: STK-ETKPavilion 41.9°Culet: NoneDepth 59.9%

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: €7,665 EUR|Low: €3,684 EUR|High: €7,665 EUR|Avg: €4,737 EUR
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 7, 2026
Retailer 4€3,702 EUR
Retailer 15€3,704 EUR
Retailer 6€4,061 EUR
Retailer 5€4,142 EUR
Retailer 13€4,210 EUR
Retailer 12€4,332 EUR
Retailer 3€4,399 EUR
Retailer 17€4,399 EUR
Retailer 18€4,399 EUR
Retailer 7€4,435 EUR
Retailer 8€4,494 EUR
Retailer 10€4,535 EUR
Retailer 9€4,648 EUR
Retailer 2€4,674 EUR
Retailer 16€5,077 EUR
Retailer 14€5,368 EUR
Retailer 11€6,970 EUR
NZ Jewellers€7,665 EUR

32 data points across 18 retailers

19 retailers€3,702 EUR to €7,665 EUR

B+
Cheapest Retailer
-
€3,702 EUR
B+
Retailer 2
-
€3,704 EUR
View
B+
Retailer 3
-
€3,837 EUR
View
B+
Retailer 4
-
€4,061 EUR
View
Final sale: no returns
B+
Retailer 5
-
€4,142 EUR
View
B+
Retailer 6
-
€4,210 EUR
View
B+
Retailer 7
-
€4,332 EUR
View
B
Retailer 8
-
€4,399 EUR
View
B
Retailer 9
-
€4,399 EUR
View
Retailer 10
-
€4,399 EUR
View
Price last confirmed 13 days ago
Retailer 11
-
€4,435 EUR
View
Price last confirmed 29 days ago
B
Retailer 12
-
€4,494 EUR
View
B
Retailer 13
-
€4,535 EUR
View
B
Retailer 14
-
€4,648 EUR
View
B
Retailer 15
-
€4,674 EUR
View
B
Retailer 16
-
€5,077 EUR
View
B
Retailer 17
-
€5,368 EUR
View
B
Retailer 18
-
€6,970 EUR
View
Most Expensive
C
NZ Jewellers
9be0e4a2-93b6-416f-97c9-bfaaaf15adb7 · Nov 5
€7,665 EUR
$8,558 USD
View
18 more retailers have this diamond
Prices start from €3,702 EURSave up to €3,963 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+
1.70ct Heart
€3,702 EUR