Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6421992372

Certificate GIA 6421992372

Diamond specifications and retailer prices

From $7,284 NZD
$4,105 USD
As of October 25, 2026
Save $8,062 NZD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $16,027 NZD 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: $10,269 NZD|Low: $6,307 NZD|High: $15,447 NZD|Avg: $9,742 NZD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$7,284 NZD
Retailer 8$7,386 NZD
Retailer 4$7,569 NZD
Retailer 7$8,013 NZD
Retailer 2$9,289 NZD
Retailer 1$10,269 NZD
Retailer 9$11,404 NZD
Retailer 6$13,876 NZD
Retailer 3$15,345 NZD

34 data points across 9 retailers

20 retailers$7,284 NZD to $15,345 NZD

B+
Cheapest Retailer
-
$7,284 NZD
$4,105 USD
B+
Retailer 2
-
$7,360 NZD
$4,148 USD
View
B+
Retailer 3
-
$7,386 NZD
$4,163 USD
View
B+
Retailer 4
-
$7,569 NZD
$4,266 USD
View
B+
Retailer 5
-
$7,571 NZD
$4,267 USD
View
B+
Retailer 6
-
$7,663 NZD
$4,319 USD
View
B+
Retailer 7
-
$8,013 NZD
$4,516 USD
View
Final sale: no returns
Retailer 8
-
$8,682 NZD
$4,893 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$8,682 NZD
$4,893 USD
View
Price last confirmed 31 days ago
Retailer 10
-
$8,831 NZD
$4,977 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$9,162 NZD
$5,164 USD
View
B+
Retailer 12
-
$9,289 NZD
£4,122 GBP
View
B
Retailer 13
-
$9,546 NZD
$5,380 USD
View
B
Retailer 14
-
$9,546 NZD
$5,380 USD
View
B
Retailer 15
-
$9,865 NZD
$5,560 USD
View
Retailer 16
-
$10,018 NZD
$5,646 USD
View
Price last confirmed 31 days ago
B
Retailer 17
-
$10,269 NZD
€5,512 EUR
View
B
Retailer 18
-
$13,876 NZD
$7,820 USD
View
B
Retailer 19
-
$15,345 NZD
£6,810 GBP
View
Most Expensive
NZ Jewellers
bff5df65-5216-47ee-9b5d-5d99672620a2 · Sep 28
$16,027 NZD
$9,033 USD
View
Price last confirmed 33 days ago
19 more retailers have this diamond
Prices start from $7,284 NZDSave up to $8,062 NZD

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
$7,284 NZD