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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 $1,459 USD
HK$11,400 HKD
As of October 31, 2026
Save $3,399 USD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,858 USD 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 $1,459 to $4,858, a $3,399 spread on the same certified stone. NZ Jewellers lists it at $4,858. 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
Color
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: Oct 31
Current: $4,858 USD|Low: $1,446 USD|High: $4,858 USD|Avg: $2,712 USD|+2.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2$1,459 USD
Retailer 4$1,922 USD
Retailer 7$2,037 USD
Retailer 6$2,130 USD
Retailer 3$2,199 USD
Retailer 5$2,755 USD
Retailer 8$3,573 USD
NZ Jewellers$4,858 USD

42 data points across 8 retailers

8 retailers$1,459 USD to $4,858 USD

A
Cheapest Retailer
-
$1,459 USD
HK$11,400 HKD
A
Retailer 2
-
$1,922 USD
£1,514 GBP
View
A
Retailer 3
-
$2,037 USD
View
A
Retailer 4
-
$2,130 USD
View
A
Retailer 5
-
$2,199 USD
View
B+
Retailer 6
-
$2,755 USD
€2,624 EUR
View
B+
Retailer 7
-
$3,573 USD
£2,813 GBP
View
Most Expensive
B
NZ Jewellers
cc0ead37-83b3-4bed-b6b1-2fefbdf3fea1 · Oct 30
$4,858 USD
View
7 more retailers have this diamond
Prices start from $1,459 USDSave up to $3,399 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.

A
1.27ct Round
$1,459 USD