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Round|Natural|GIA

1.27ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5242051392

Certificate GIA 5242051392

Diamond specifications and retailer prices

From $2,589 NZD
HK$11,400 HKD
As of November 1, 2026
Save $6,030 NZD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,620 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.27ct natural round diamond

This 1.27ct 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 top-tier cut grade and certified by GIA 5242051392. Listed at 8 retailers as of October 30, 2026, with prices from $2,589 to $8,620, a $6,030 spread on the same certified stone. NZ Jewellers lists it at $8,620. 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

1.27
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5242051392
Dimensions6.84 × 6.89 × 4.31 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle
Top View
6.84 mm6.89 mm1.27 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242051392
Side View
Table 58.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,620 NZD|Low: $2,566 NZD|High: $8,620 NZD|Avg: $4,798 NZD|+4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$2,589 NZD
Retailer 2$3,401 NZD
Retailer 4$3,534 NZD
Retailer 7$3,779 NZD
Retailer 6$3,902 NZD
Retailer 3$4,753 NZD
Retailer 8$6,339 NZD
NZ Jewellers$8,620 NZD

42 data points across 8 retailers

8 retailers$2,589 NZD to $8,620 NZD

A
Cheapest Retailer
-
$2,589 NZD
HK$11,400 HKD
A
Retailer 2
-
$3,401 NZD
£1,509 GBP
View
A
Retailer 3
-
$3,534 NZD
$1,992 USD
View
A
Retailer 4
-
$3,779 NZD
$2,130 USD
View
A
Retailer 5
-
$3,902 NZD
$2,199 USD
View
B+
Retailer 6
-
$4,753 NZD
€2,551 EUR
View
B+
Retailer 7
-
$6,339 NZD
£2,813 GBP
View
Most Expensive
B
NZ Jewellers
cc0ead37-83b3-4bed-b6b1-2fefbdf3fea1 · Oct 30
$8,620 NZD
$4,858 USD
View
7 more retailers have this diamond
Prices start from $2,589 NZDSave up to $6,030 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.

A
1.27ct Round
$2,589 NZD