Round|Natural|GIA

1.70ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556660747

Certificate GIA 2556660747

Diamond specifications and retailer prices

From €4,411 EUR
HK$38,500 HKD
As of November 1, 2026
Save €4,244 EUR (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €9,825 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556660747. Listed at 20 retailers as of November 1, 2026, with a 96% 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556660747
Dimensions7.58 × 7.63 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.58 mm7.63 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556660747
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

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 1
Current: €6,391 EUR|Low: €4,411 EUR|High: €8,759 EUR|Avg: €6,125 EUR|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7€4,411 EUR
Retailer 3€4,662 EUR
Retailer 9€5,157 EUR
Retailer 10€5,422 EUR
Retailer 5€5,597 EUR
Retailer 2€5,731 EUR
Retailer 1€6,391 EUR
Retailer 8€6,799 EUR
Retailer 6€7,218 EUR
Retailer 4€8,655 EUR

30 data points across 10 retailers

20 retailers€4,411 EUR to €8,655 EUR

B+
Cheapest Retailer
-
€4,411 EUR
HK$38,500 HKD
B+
Retailer 2
-
€4,662 EUR
₹496,078 INR
View
Retailer 3
-
€5,027 EUR
SGD 7,589 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
€5,157 EUR
SGD 7,786 SGD
View
B
Retailer 5
-
€5,362 EUR
$5,991 USD
View
B
Retailer 6
-
€5,366 EUR
$5,995 USD
View
B
Retailer 7
-
€5,422 EUR
$6,058 USD
View
Final sale: no returns
Retailer 8
-
€5,422 EUR
$6,058 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
€5,597 EUR
£4,924 GBP
View
Retailer 10
-
€5,731 EUR
A$9,850 AUD
View
Price last confirmed 23 days ago
B
Retailer 11
-
€5,845 EUR
$6,530 USD
View
Retailer 12
-
€5,874 EUR
$6,563 USD
View
Price last confirmed 34 days ago
Retailer 13
-
€5,874 EUR
$6,563 USD
View
Price last confirmed 12 days ago
Retailer 14
-
€5,965 EUR
$6,664 USD
View
Price last confirmed 33 days ago
B
Retailer 15
-
€6,017 EUR
$6,722 USD
View
B
Retailer 16
-
€6,391 EUR
View
Retailer 17
-
€6,779 EUR
$7,573 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
€7,218 EUR
ZAR 130,269 ZAR
View
B
Retailer 19
-
€8,655 EUR
£7,614 GBP
View
Most Expensive
NZ Jewellers
2294e6e0-2c75-4730-957e-fbbe77e5e584 · Sep 28
€9,825 EUR
$10,977 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from €4,411 EURSave up to €4,244 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
€4,411 EUR