Round|Natural|GIA

1.70ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1549273883

Certificate GIA 1549273883

Diamond specifications and retailer prices

From $10,868 USD
As of November 1, 2026
Save $8,655 USD (44%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $19,523 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 1549273883. Listed at 31 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549273883
Dimensions7.62 × 7.57 × 4.77 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.62 mm7.57 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549273883
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°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: $12,583 USD|Low: $10,737 USD|High: $18,515 USD|Avg: $13,912 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
November 3, 2026
Retailer 4$10,868 USD
Retailer 13$10,915 USD
Retailer 5$11,545 USD
Retailer 3$11,713 USD
Retailer 11$11,714 USD
Retailer 1$12,583 USD
Retailer 12$12,745 USD
Retailer 2$12,951 USD
Retailer 7$14,694 USD
Retailer 6$15,336 USD
Retailer 10$17,107 USD
Retailer 9$17,209 USD
Retailer 8$18,294 USD

35 data points across 13 retailers

31 retailers$10,868 USD to $19,523 USD

B+
Cheapest Retailer
-
$10,868 USD
B+
Retailer 2
-
$10,915 USD
View
B+
Retailer 3
-
$11,545 USD
View
B+
Retailer 4
-
$11,713 USD
View
Final sale: no returns
B+
Retailer 5
-
$11,714 USD
View
Retailer 6
-
$11,714 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$12,501 USD
View
B+
Retailer 8
-
$12,583 USD
£9,908 GBP
View
Retailer 9
-
$12,690 USD
View
Price last confirmed 46 days ago
Retailer 10
-
$12,690 USD
View
Price last confirmed 26 days ago
Retailer 11
-
$12,690 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$12,745 USD
A$19,608 AUD
View
Price last confirmed 10 days ago
Retailer 13
-
$12,885 USD
View
Price last confirmed 34 days ago
B
Retailer 14
-
$12,951 USD
View
Retailer 15
-
$12,951 USD
View
Price last confirmed 24 days ago
B
Retailer 16
-
$13,110 USD
View
B
Retailer 17
-
$13,110 USD
View
B
Retailer 18
-
$13,540 USD
View
Retailer 19
-
$14,642 USD
View
Price last confirmed 24 days ago
Retailer 20
-
$14,642 USD
View
Price last confirmed 41 days ago
Retailer 21
-
$14,642 USD
View
Price last confirmed 13 days ago
B
Retailer 22
-
$14,642 USD
View
B
Retailer 23
-
$14,694 USD
€13,994 EUR
View
B
Retailer 24
-
$15,336 USD
£12,075 GBP
View
B
Retailer 25
-
$17,107 USD
£13,470 GBP
View
B
Retailer 26
-
$17,209 USD
ZAR 278,017 ZAR
View
B
Retailer 27
-
$18,294 USD
£14,405 GBP
View
Retailer 28
-
$19,523 USD
View
Price last confirmed 44 days ago
B
Retailer 29
-
$19,523 USD
View
Retailer 30
-
$19,523 USD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
a637e63a-b37a-4be9-b358-ac056ee9aa4f · Oct 20
$19,523 USD
View
Price last confirmed 13 days ago
30 more retailers have this diamond
Prices start from $10,868 USDSave up to $8,655 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
$10,868 USD