Round|Natural|GIA

1.70ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2547172823

Certificate GIA 2547172823

Diamond specifications and retailer prices

From $4,749 USD
HK$37,100 HKD
As of November 1, 2026
Save $4,487 USD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,485 USD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547172823. Listed at 20 retailers as of November 1, 2026, with a 94% 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2547172823
Dimensions7.69 × 7.62 × 4.70 mm
L/W Ratio1.01
Top View
7.69 mm7.62 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547172823
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.3%

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: $5,031 USD|Low: $4,749 USD|High: $9,335 USD|Avg: $6,358 USD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$4,749 USD
Retailer 1$5,031 USD
Retailer 4$5,498 USD
Retailer 12$5,560 USD
Retailer 2$5,786 USD
Retailer 10$5,830 USD
Retailer 7$5,974 USD
Retailer 3$6,197 USD
Retailer 6$6,820 USD
Retailer 11$7,255 USD
Retailer 8$7,702 USD
Retailer 5$9,235 USD

27 data points across 12 retailers

20 retailers$4,749 USD to $9,235 USD

B+
Cheapest Retailer
-
$4,749 USD
HK$37,100 HKD
B+
Retailer 2
-
$5,031 USD
₹479,175 INR
View
Retailer 3
-
$5,418 USD
SGD 7,321 SGD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$5,498 USD
View
B+
Retailer 5
-
$5,560 USD
SGD 7,513 SGD
View
B
Retailer 6
-
$5,780 USD
View
B
Retailer 7
-
$5,786 USD
View
Final sale: no returns
B+
Retailer 8
-
$5,830 USD
View
B+
Retailer 9
-
$5,974 USD
£4,704 GBP
View
Retailer 10
-
$6,197 USD
A$9,534 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$6,210 USD
View
Retailer 12
-
$6,269 USD
View
Price last confirmed 33 days ago
Retailer 13
-
$6,269 USD
View
Price last confirmed 24 days ago
Retailer 14
-
$6,269 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
$6,426 USD
View
B
Retailer 16
-
$6,820 USD
€6,495 EUR
View
Retailer 17
-
$7,233 USD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$7,702 USD
ZAR 124,428 ZAR
View
B
Retailer 19
-
$9,235 USD
£7,272 GBP
View
Most Expensive
NZ Jewellers
4d7a9480-4f97-4a51-a3ee-da083b02b93d · Sep 28
$10,485 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $4,749 USDSave up to $4,487 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
$4,749 USD