Round|Natural|GIA

1.70ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6525538745

Certificate GIA 6525538745

Diamond specifications and retailer prices

From $10,913 USD
As of November 1, 2026
Save $8,691 USD (44%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $19,604 USD at NZ Jewellers · As of October 20, 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 6525538745. Listed at 29 retailers as of November 1, 2026, with a 80% 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6525538745
Dimensions7.61 × 7.56 × 4.76 mm
L/W Ratio1.01
Top View
7.61 mm7.56 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6525538745
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: Nov 1
Current: $12,635 USD|Low: $10,782 USD|High: $18,592 USD|Avg: $14,347 USD|-2.2%
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 3, 2026
Retailer 7$10,913 USD
Retailer 12$11,590 USD
Retailer 6$11,761 USD
Retailer 14$11,762 USD
Retailer 1$12,635 USD
Retailer 15$12,799 USD
Retailer 3$13,005 USD
Retailer 2$13,160 USD
Retailer 5$13,160 USD
Retailer 4$13,590 USD
Retailer 9$14,756 USD
Retailer 8$15,399 USD
Retailer 13$17,151 USD
Retailer 11$17,280 USD
Retailer 10$18,371 USD

35 data points across 15 retailers

29 retailers$10,913 USD to $19,604 USD

B+
Cheapest Retailer
-
$10,913 USD
B+
Retailer 2
-
$11,590 USD
View
B
Retailer 3
-
$11,761 USD
View
Final sale: no returns
B+
Retailer 4
-
$11,762 USD
View
Retailer 5
-
$11,762 USD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$12,552 USD
View
B+
Retailer 7
-
$12,635 USD
£9,949 GBP
View
Retailer 8
-
$12,743 USD
View
Price last confirmed 46 days ago
Retailer 9
-
$12,743 USD
View
Price last confirmed 26 days ago
Retailer 10
-
$12,743 USD
View
Price last confirmed 11 days ago
Retailer 11
-
$12,799 USD
A$19,690 AUD
View
Price last confirmed 10 days ago
Retailer 12
-
$12,939 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$13,005 USD
View
Retailer 14
-
$13,005 USD
View
Price last confirmed 24 days ago
B
Retailer 15
-
$13,160 USD
View
B
Retailer 16
-
$13,160 USD
View
B
Retailer 17
-
$13,590 USD
View
Retailer 18
-
$14,703 USD
View
Price last confirmed 42 days ago
Retailer 19
-
$14,703 USD
View
Price last confirmed 24 days ago
B
Retailer 20
-
$14,703 USD
View
B
Retailer 21
-
$14,756 USD
€14,053 EUR
View
B
Retailer 22
-
$15,399 USD
£12,125 GBP
View
B
Retailer 23
-
$17,151 USD
£13,505 GBP
View
B
Retailer 24
-
$17,280 USD
ZAR 279,166 ZAR
View
B
Retailer 25
-
$18,371 USD
£14,465 GBP
View
B
Retailer 26
-
$19,604 USD
View
Retailer 27
-
$19,604 USD
View
Price last confirmed 44 days ago
Retailer 28
-
$19,604 USD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
24be1256-cc0a-4b18-b920-51aca99fa6fd · Oct 20
$19,604 USD
View
Price last confirmed 13 days ago
28 more retailers have this diamond
Prices start from $10,913 USDSave up to $8,691 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
$10,913 USD