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Round|Natural|GIA

1.71ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1428220288

Certificate GIA 1428220288

Diamond specifications and retailer prices

From $6,510 USD
As of October 25, 2026
Save $8,036 USD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $14,546 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.71ct natural round diamond

This 1.71ct 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 top-tier cut grade and certified by GIA 1428220288. Listed at 18 retailers as of October 25, 2026, with prices from $6,510 to $14,546, a $8,036 spread on the same certified stone. NZ Jewellers lists it at $14,546. 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

1.71
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1428220288
Dimensions7.69 × 7.64 × 4.77 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.69 mm7.64 mm1.71 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428220288
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.4%

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: $14,546 USD|Low: $6,510 USD|High: $15,065 USD|Avg: $9,089 USD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 12$6,510 USD
Retailer 16$6,579 USD
Retailer 7$6,810 USD
Retailer 8$7,272 USD
Retailer 14$7,273 USD
Retailer 3$7,747 USD
Retailer 4$7,879 USD
Retailer 15$8,000 USD
Retailer 2$8,049 USD
Retailer 13$8,570 USD
Retailer 17$8,570 USD
Retailer 5$8,860 USD
Retailer 10$9,038 USD
Retailer 6$9,091 USD
Retailer 9$9,578 USD
Retailer 11$12,186 USD
NZ Jewellers$14,546 USD

41 data points across 17 retailers

18 retailers$6,510 USD to $14,546 USD

B+
Cheapest Retailer
-
$6,510 USD
B+
Retailer 2
-
$6,579 USD
View
B
Retailer 3
-
$6,775 USD
A$10,423 AUD
View
B
Retailer 4
-
$6,810 USD
View
B
Retailer 5
-
$7,272 USD
View
Final sale: no returns
B
Retailer 6
-
$7,273 USD
View
B
Retailer 7
-
$7,747 USD
View
B
Retailer 8
-
$7,879 USD
View
B
Retailer 9
-
$8,000 USD
View
B
Retailer 10
-
$8,049 USD
£6,338 GBP
View
B
Retailer 11
-
$8,570 USD
View
B
Retailer 12
-
$8,570 USD
View
B
Retailer 13
-
$8,860 USD
View
B
Retailer 14
-
$9,038 USD
€8,608 EUR
View
B
Retailer 15
-
$9,091 USD
View
Retailer 16
-
$9,578 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$12,186 USD
£9,595 GBP
View
Most Expensive
B
NZ Jewellers
1f2e109e-adba-4660-8a7f-e6967a407659 · Oct 30
$14,546 USD
View
17 more retailers have this diamond
Prices start from $6,510 USDSave up to $8,036 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+
1.71ct Round
$6,510 USD