Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6421992372

Certificate GIA 6421992372

Diamond specifications and retailer prices

From $4,105 USD
As of October 25, 2026
Save $4,544 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,033 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 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
Color
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: $5,219 USD|Low: $3,555 USD|High: $8,706 USD|Avg: $5,384 USD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$4,105 USD
Retailer 8$4,163 USD
Retailer 4$4,266 USD
Retailer 7$4,516 USD
Retailer 1$5,219 USD
Retailer 3$5,763 USD
Retailer 9$6,427 USD
Retailer 6$7,820 USD
Retailer 2$8,649 USD

34 data points across 9 retailers

20 retailers$4,105 USD to $8,649 USD

B+
Cheapest Retailer
-
$4,105 USD
B+
Retailer 2
-
$4,148 USD
View
B+
Retailer 3
-
$4,163 USD
View
B+
Retailer 4
-
$4,266 USD
View
B+
Retailer 5
-
$4,267 USD
View
B+
Retailer 6
-
$4,319 USD
View
B+
Retailer 7
-
$4,516 USD
View
Final sale: no returns
B+
Retailer 8
-
$4,893 USD
View
Price last confirmed 28 days ago
B+
Retailer 9
-
$4,893 USD
View
Price last confirmed 30 days ago
B+
Retailer 10
-
$4,977 USD
View
B
Retailer 11
-
$5,164 USD
View
B+
Retailer 12
-
$5,219 USD
£4,110 GBP
View
B
Retailer 13
-
$5,380 USD
View
B
Retailer 14
-
$5,380 USD
View
B
Retailer 15
-
$5,560 USD
View
B
Retailer 16
-
$5,646 USD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$5,763 USD
€5,489 EUR
View
B
Retailer 18
-
$7,820 USD
View
B
Retailer 19
-
$8,649 USD
£6,810 GBP
View
Most Expensive
C
NZ Jewellers
bff5df65-5216-47ee-9b5d-5d99672620a2 · Sep 28
$9,033 USD
View
Price last confirmed 31 days ago
19 more retailers have this diamond
Prices start from $4,105 USDSave up to $4,544 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
$4,105 USD