Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6421992372

Certificate GIA 6421992372

Diamond specifications and retailer prices

From €3,674 EUR
$4,105 USD
As of October 25, 2026
Save €4,067 EUR (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €8,085 EUR at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6421992372. Listed at 20 retailers as of October 25, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6421992372
Dimensions7.48 × 7.37 × 4.80 mm
L/W Ratio1.01
Top View
7.48 mm7.37 mm1.70 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6421992372
Side View
Table 55.0%Crown 38.5°Girdle: ThickPavilion 39.8°Culet: NoneDepth 64.7%

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: Oct 25
Current: €5,180 EUR|Low: €3,182 EUR|High: €7,793 EUR|Avg: €4,853 EUR|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6€3,674 EUR
Retailer 9€3,726 EUR
Retailer 5€3,818 EUR
Retailer 8€4,042 EUR
Retailer 10€4,380 EUR
Retailer 3€4,686 EUR
Retailer 1€5,180 EUR
Retailer 2€5,753 EUR
Retailer 7€7,000 EUR
Retailer 4€7,741 EUR

34 data points across 10 retailers

20 retailers€3,674 EUR to €7,741 EUR

B+
Cheapest Retailer
-
€3,674 EUR
$4,105 USD
B+
Retailer 2
-
€3,713 EUR
$4,148 USD
View
B+
Retailer 3
-
€3,726 EUR
$4,163 USD
View
B+
Retailer 4
-
€3,818 EUR
$4,266 USD
View
B+
Retailer 5
-
€3,819 EUR
$4,267 USD
View
B+
Retailer 6
-
€3,866 EUR
$4,319 USD
View
B+
Retailer 7
-
€4,042 EUR
$4,516 USD
View
Final sale: no returns
Retailer 8
-
€4,380 EUR
$4,893 USD
View
Price last confirmed 30 days ago
Retailer 9
-
€4,380 EUR
$4,893 USD
View
Price last confirmed 32 days ago
Retailer 10
-
€4,455 EUR
$4,977 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
€4,622 EUR
$5,164 USD
View
B+
Retailer 12
-
€4,686 EUR
£4,122 GBP
View
B
Retailer 13
-
€4,816 EUR
$5,380 USD
View
B
Retailer 14
-
€4,816 EUR
$5,380 USD
View
B
Retailer 15
-
€4,977 EUR
$5,560 USD
View
Retailer 16
-
€5,054 EUR
$5,646 USD
View
Price last confirmed 32 days ago
B
Retailer 17
-
€5,180 EUR
View
B
Retailer 18
-
€7,000 EUR
$7,820 USD
View
B
Retailer 19
-
€7,741 EUR
£6,810 GBP
View
Most Expensive
NZ Jewellers
bff5df65-5216-47ee-9b5d-5d99672620a2 · Sep 28
€8,085 EUR
$9,033 USD
View
Price last confirmed 33 days ago
19 more retailers have this diamond
Prices start from €3,674 EURSave up to €4,067 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 Round
€3,674 EUR