Round|Natural|GIA

1.70ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1538561638

Certificate GIA 1538561638

Diamond specifications and retailer prices

From €8,262 EUR
HK$72,400 HKD
As of November 1, 2026
Save €5,872 EUR (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €15,241 EUR at NZ Jewellers · As of September 21, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538561638. Listed at 23 retailers as of November 1, 2026, with a 71% 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
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1538561638
Dimensions7.61 × 7.56 × 4.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Indented Natural, Needle
Top View
7.61 mm7.56 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538561638
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.3%

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: €8,800 EUR|Low: €8,262 EUR|High: €14,453 EUR|Avg: €11,018 EUR|-0.1%
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
Retailer 16
November 2, 2026
Retailer 15€8,262 EUR
Retailer 1€8,800 EUR
Retailer 7€9,144 EUR
Retailer 8€9,144 EUR
Retailer 14€9,181 EUR
Retailer 9€9,706 EUR
Retailer 2€9,968 EUR
Retailer 4€10,654 EUR
Retailer 5€10,654 EUR
Retailer 3€11,002 EUR
Retailer 16€11,081 EUR
Retailer 10€11,353 EUR
Retailer 6€11,908 EUR
Retailer 12€13,296 EUR
Retailer 13€13,882 EUR
Retailer 11€14,135 EUR

35 data points across 16 retailers

23 retailers€8,262 EUR to €14,135 EUR

B+
Cheapest Retailer
-
€8,262 EUR
HK$72,400 HKD
B+
Retailer 2
-
€8,800 EUR
₹940,003 INR
View
B+
Retailer 3
-
€8,859 EUR
$9,936 USD
View
Retailer 4
-
€9,144 EUR
$10,256 USD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
€9,144 EUR
$10,256 USD
View
Final sale: no returns
B+
Retailer 6
-
€9,181 EUR
$10,298 USD
View
B+
Retailer 7
-
€9,706 EUR
£8,572 GBP
View
Retailer 8
-
€9,906 EUR
$11,111 USD
View
Price last confirmed 40 days ago
Retailer 9
-
€9,906 EUR
$11,111 USD
View
Price last confirmed 26 days ago
Retailer 10
-
€9,968 EUR
A$17,200 AUD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
€10,013 EUR
$11,231 USD
View
B+
Retailer 12
-
€10,017 EUR
$11,235 USD
View
Retailer 13
-
€10,654 EUR
$11,950 USD
View
Price last confirmed 11 days ago
Retailer 14
-
€10,654 EUR
$11,950 USD
View
Price last confirmed 12 days ago
Retailer 15
-
€11,002 EUR
$12,340 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
€11,081 EUR
$12,429 USD
View
B
Retailer 17
-
€11,353 EUR
View
Retailer 18
-
€11,430 EUR
$12,820 USD
View
Price last confirmed 42 days ago
Retailer 19
-
€11,908 EUR
$13,356 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
€13,296 EUR
ZAR 240,927 ZAR
View
B
Retailer 21
-
€13,882 EUR
£12,260 GBP
View
B
Retailer 22
-
€14,135 EUR
£12,483 GBP
View
Most Expensive
NZ Jewellers
53fb34b2-7081-4fab-86f9-092584c07749 · Sep 21
€15,241 EUR
$17,094 USD
View
Price last confirmed 42 days ago
22 more retailers have this diamond
Prices start from €8,262 EURSave up to €5,872 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
€8,262 EUR