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Round|Natural|GIA

1.28ct J SI2 Round Natural Diamond

GD • J/SI2 • GIA 2231291639

Certificate GIA 2231291639

Diamond specifications and retailer prices

From $5,389 NZD
$3,037 USD
As of November 2, 2026
Save $2,019 NZD (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $7,407 NZD at Yorxs · As of November 1, 2026
View at Yorxs

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 2231291639. Listed at 3 retailers as of November 1, 2026, with prices from $5,389 to $7,407, a $2,019 spread on the same certified stone. Yorxs lists it at $7,407. 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

1.28
Carat
J
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231291639
Dimensions7.19 × 7.28 × 4.11 mm
L/W Ratio1.01
Top View
7.19 mm7.28 mm1.28 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231291639
Side View
Table 62.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 56.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,389 NZD|Low: $5,389 NZD|High: $7,441 NZD|Avg: $6,388 NZD|-6.5%
Retailer 1
Yorxs
November 1, 2026
Retailer 1$5,389 NZD
Yorxs$7,407 NZD

16 data points across 2 retailers

3 retailers$5,389 NZD to $7,407 NZD

B
Cheapest Retailer
-
$5,389 NZD
$3,037 USD
B
Retailer 2
-
$5,617 NZD
A$4,870 AUD
View
Most Expensive
C
Yorxs
JOLA2147 · Nov 1
$7,407 NZD
€3,976 EUR
View
2 more retailers have this diamond
Prices start from $5,389 NZDSave up to $2,019 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
1.28ct Round
$5,389 NZD