Round|Natural|GIA

1.70ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1538561638

Certificate GIA 1538561638

Diamond specifications and retailer prices

From $9,267 USD
HK$72,400 HKD
As of November 1, 2026
Save $6,586 USD (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $17,094 USD 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: $9,870 USD|Low: $9,267 USD|High: $16,210 USD|Avg: $12,358 USD|-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$9,267 USD
Retailer 1$9,870 USD
Retailer 7$10,256 USD
Retailer 8$10,256 USD
Retailer 14$10,298 USD
Retailer 9$10,886 USD
Retailer 2$11,180 USD
Retailer 4$11,950 USD
Retailer 5$11,950 USD
Retailer 3$12,340 USD
Retailer 16$12,429 USD
Retailer 10$12,733 USD
Retailer 6$13,356 USD
Retailer 12$14,913 USD
Retailer 13$15,570 USD
Retailer 11$15,853 USD

35 data points across 16 retailers

23 retailers$9,267 USD to $15,853 USD

B+
Cheapest Retailer
-
$9,267 USD
HK$72,400 HKD
B+
Retailer 2
-
$9,870 USD
₹940,003 INR
View
B+
Retailer 3
-
$9,936 USD
View
Retailer 4
-
$10,256 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$10,256 USD
View
Final sale: no returns
B+
Retailer 6
-
$10,298 USD
View
B+
Retailer 7
-
$10,886 USD
£8,572 GBP
View
Retailer 8
-
$11,111 USD
View
Price last confirmed 40 days ago
Retailer 9
-
$11,111 USD
View
Price last confirmed 26 days ago
Retailer 10
-
$11,180 USD
A$17,200 AUD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$11,231 USD
View
B+
Retailer 12
-
$11,235 USD
View
Retailer 13
-
$11,950 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$11,950 USD
View
Price last confirmed 11 days ago
Retailer 15
-
$12,340 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$12,429 USD
View
B
Retailer 17
-
$12,733 USD
€12,127 EUR
View
Retailer 18
-
$12,820 USD
View
Price last confirmed 41 days ago
Retailer 19
-
$13,356 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$14,913 USD
ZAR 240,927 ZAR
View
B
Retailer 21
-
$15,570 USD
£12,260 GBP
View
B
Retailer 22
-
$15,853 USD
£12,483 GBP
View
Most Expensive
NZ Jewellers
53fb34b2-7081-4fab-86f9-092584c07749 · Sep 21
$17,094 USD
View
Price last confirmed 42 days ago
22 more retailers have this diamond
Prices start from $9,267 USDSave up to $6,586 USD

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
$9,267 USD