Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2537925451

Certificate GIA 2537925451

Diamond specifications and retailer prices

From €3,978 EUR
As of November 5, 2026
Save €3,713 EUR (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €8,821 EUR at NZ Jewellers · As of October 18, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2537925451. Listed at 19 retailers as of November 5, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537925451
Dimensions7.19 × 8.19 × 4.88 mm
L/W Ratio1.14
Top View
7.19 mm8.19 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537925451
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.6%

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 5
Current: €5,572 EUR|Low: €3,966 EUR|High: €7,883 EUR|Avg: €5,254 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9€3,978 EUR
Retailer 6€4,185 EUR
Retailer 2€4,557 EUR
Retailer 8€4,726 EUR
Retailer 11€4,844 EUR
Retailer 5€5,069 EUR
Retailer 3€5,309 EUR
Retailer 10€5,386 EUR
Retailer 1€5,572 EUR
Retailer 7€6,403 EUR
Retailer 4€7,690 EUR

40 data points across 11 retailers

19 retailers€3,978 EUR to €7,690 EUR

B+
Cheapest Retailer
-
€3,978 EUR
B+
Retailer 2
-
€4,185 EUR
View
Retailer 3
-
€4,557 EUR
View
Price last confirmed 11 days ago
B+
Retailer 4
-
€4,726 EUR
View
B
Retailer 5
-
€4,844 EUR
View
Final sale: no returns
B+
Retailer 6
-
€4,888 EUR
View
B+
Retailer 7
-
€4,890 EUR
View
B+
Retailer 8
-
€5,069 EUR
View
B
Retailer 9
-
€5,110 EUR
View
Retailer 10
-
€5,275 EUR
View
Price last confirmed 22 days ago
Retailer 11
-
€5,275 EUR
View
Price last confirmed 22 days ago
Retailer 12
-
€5,275 EUR
View
Price last confirmed 20 days ago
Retailer 13
-
€5,309 EUR
View
Price last confirmed 29 days ago
B
Retailer 14
-
€5,386 EUR
View
B
Retailer 15
-
€5,572 EUR
View
Retailer 16
-
€6,086 EUR
View
Price last confirmed 19 days ago
B
Retailer 17
-
€6,403 EUR
View
B
Retailer 18
-
€7,690 EUR
View
Most Expensive
NZ Jewellers
757a0c92-cc31-4100-b482-86a769ea811a · Oct 18
€8,821 EUR
$9,849 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from €3,978 EURSave up to €3,713 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
€3,978 EUR