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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 $2,077 AUD
HK$11,400 HKD
As of November 1, 2026
Save $4,839 AUD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,916 AUD 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 $2,077 to $6,916, a $4,839 spread on the same certified stone. NZ Jewellers lists it at $6,916. 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: $6,916 AUD|Low: $2,059 AUD|High: $6,916 AUD|Avg: $3,850 AUD|+4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$2,077 AUD
Retailer 2$2,728 AUD
Retailer 4$2,836 AUD
Retailer 7$3,032 AUD
Retailer 6$3,130 AUD
Retailer 3$3,813 AUD
Retailer 8$5,086 AUD
NZ Jewellers$6,916 AUD

42 data points across 8 retailers

8 retailers$2,077 AUD to $6,916 AUD

A
Cheapest Retailer
-
$2,077 AUD
HK$11,400 HKD
A
Retailer 2
-
$2,728 AUD
£1,509 GBP
View
A
Retailer 3
-
$2,836 AUD
$1,992 USD
View
A
Retailer 4
-
$3,032 AUD
$2,130 USD
View
A
Retailer 5
-
$3,130 AUD
$2,199 USD
View
B+
Retailer 6
-
$3,813 AUD
€2,551 EUR
View
B+
Retailer 7
-
$5,086 AUD
£2,813 GBP
View
Most Expensive
B
NZ Jewellers
cc0ead37-83b3-4bed-b6b1-2fefbdf3fea1 · Oct 30
$6,916 AUD
$4,858 USD
View
7 more retailers have this diamond
Prices start from $2,077 AUDSave up to $4,839 AUD

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
$2,077 AUD