Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6421992372

Certificate GIA 6421992372

Diamond specifications and retailer prices

From HK$32,207 HKD
$4,105 USD
As of October 25, 2026
Save HK$35,649 HKD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$70,870 HKD 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6421992372. Listed at 20 retailers as of October 25, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6421992372
Dimensions7.48 × 7.37 × 4.80 mm
L/W Ratio1.01
Top View
7.48 mm7.37 mm1.70 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6421992372
Side View
Table 55.0%Crown 38.5°Girdle: ThickPavilion 39.8°Culet: NoneDepth 64.7%

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: Oct 25
Current: HK$45,408 HKD|Low: HK$27,889 HKD|High: HK$68,303 HKD|Avg: HK$43,078 HKD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5HK$32,207 HKD
Retailer 8HK$32,662 HKD
Retailer 4HK$33,470 HKD
Retailer 7HK$35,431 HKD
Retailer 2HK$41,073 HKD
Retailer 1HK$45,408 HKD
Retailer 9HK$50,425 HKD
Retailer 6HK$61,356 HKD
Retailer 3HK$67,855 HKD

34 data points across 9 retailers

20 retailersHK$32,207 HKD to HK$67,855 HKD

B+
Cheapest Retailer
-
HK$32,207 HKD
$4,105 USD
B+
Retailer 2
-
HK$32,544 HKD
$4,148 USD
View
B+
Retailer 3
-
HK$32,662 HKD
$4,163 USD
View
B+
Retailer 4
-
HK$33,470 HKD
$4,266 USD
View
B+
Retailer 5
-
HK$33,478 HKD
$4,267 USD
View
B+
Retailer 6
-
HK$33,885 HKD
$4,319 USD
View
B+
Retailer 7
-
HK$35,431 HKD
$4,516 USD
View
Final sale: no returns
Retailer 8
-
HK$38,389 HKD
$4,893 USD
View
Price last confirmed 29 days ago
Retailer 9
-
HK$38,389 HKD
$4,893 USD
View
Price last confirmed 31 days ago
Retailer 10
-
HK$39,048 HKD
$4,977 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
HK$40,511 HKD
$5,164 USD
View
B+
Retailer 12
-
HK$41,073 HKD
£4,122 GBP
View
B
Retailer 13
-
HK$42,210 HKD
$5,380 USD
View
B
Retailer 14
-
HK$42,210 HKD
$5,380 USD
View
B
Retailer 15
-
HK$43,622 HKD
$5,560 USD
View
Retailer 16
-
HK$44,297 HKD
$5,646 USD
View
Price last confirmed 31 days ago
B
Retailer 17
-
HK$45,408 HKD
€5,512 EUR
View
B
Retailer 18
-
HK$61,356 HKD
$7,820 USD
View
B
Retailer 19
-
HK$67,855 HKD
£6,810 GBP
View
Most Expensive
NZ Jewellers
bff5df65-5216-47ee-9b5d-5d99672620a2 · Sep 28
HK$70,870 HKD
$9,033 USD
View
Price last confirmed 32 days ago
19 more retailers have this diamond
Prices start from HK$32,207 HKDSave up to HK$35,649 HKD

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
HK$32,207 HKD