Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556520738

Certificate GIA 2556520738

Diamond specifications and retailer prices

From €5,009 EUR
$5,596 USD
As of October 31, 2026
Save €4,739 EUR (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,243 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556520738. Listed at 18 retailers as of October 26, 2026, with a 95% 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556520738
Dimensions7.71 × 7.75 × 4.69 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
7.71 mm7.75 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556520738
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

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: Oct 31
Current: €7,038 EUR|Low: €4,431 EUR|High: €9,748 EUR|Avg: €6,564 EUR|+1.7%
Retailer 1
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
November 1, 2026
Retailer 9€5,009 EUR
Retailer 12€5,071 EUR
Retailer 13€5,217 EUR
Retailer 15€5,222 EUR
Retailer 14€5,288 EUR
Retailer 10€5,414 EUR
Retailer 11€5,521 EUR
Retailer 5€5,621 EUR
Retailer 8€6,184 EUR
Retailer 7€6,185 EUR
Retailer 2€6,202 EUR
Retailer 4€6,204 EUR
Retailer 1€7,038 EUR
Retailer 3€9,418 EUR
Retailer 6€9,748 EUR

38 data points across 15 retailers

18 retailers€5,009 EUR to €9,748 EUR

A
Cheapest Retailer
-
€5,009 EUR
$5,596 USD
A
Retailer 2
-
€5,071 EUR
$5,665 USD
View
A
Retailer 3
-
€5,217 EUR
$5,828 USD
View
A
Retailer 4
-
€5,222 EUR
$5,834 USD
View
A
Retailer 5
-
€5,288 EUR
$5,907 USD
View
A
Retailer 6
-
€5,414 EUR
A$9,306 AUD
View
B+
Retailer 7
-
€5,521 EUR
$6,168 USD
View
Final sale: no returns
Retailer 8
-
€6,090 EUR
$6,804 USD
View
Price last confirmed 31 days ago
Retailer 9
-
€6,183 EUR
$6,908 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
€6,184 EUR
£5,440 GBP
View
Retailer 11
-
€6,185 EUR
$6,910 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
€6,202 EUR
$6,928 USD
View
B+
Retailer 13
-
€6,204 EUR
$6,931 USD
View
Retailer 14
-
€7,027 EUR
$7,851 USD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
€7,038 EUR
View
B
Retailer 16
-
€9,418 EUR
£8,285 GBP
View
B
Retailer 17
-
€9,748 EUR
$10,891 USD
View
Most Expensive
NZ Jewellers
0e9bb4a0-df40-447b-bf38-7b3545a180d1 · Sep 28
€11,243 EUR
$12,561 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from €5,009 EURSave up to €4,739 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 Round
€5,009 EUR