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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 €1,306 EUR
HK$11,400 HKD
As of October 31, 2026
Save €3,042 EUR (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,348 EUR 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 €1,306 to €4,348, a €3,042 spread on the same certified stone. NZ Jewellers lists it at €4,348. 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: €4,348 EUR|Low: €1,295 EUR|High: €4,348 EUR|Avg: €2,386 EUR|+4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4€1,306 EUR
Retailer 6€1,721 EUR
Retailer 3€1,783 EUR
Retailer 7€1,907 EUR
Retailer 5€1,968 EUR
Retailer 2€2,398 EUR
Retailer 8€3,198 EUR
NZ Jewellers€4,348 EUR

42 data points across 8 retailers

8 retailers€1,306 EUR to €4,348 EUR

A
Cheapest Retailer
-
€1,306 EUR
HK$11,400 HKD
A
Retailer 2
-
€1,721 EUR
£1,514 GBP
View
A
Retailer 3
-
€1,783 EUR
$1,992 USD
View
A
Retailer 4
-
€1,907 EUR
$2,130 USD
View
A
Retailer 5
-
€1,968 EUR
$2,199 USD
View
B+
Retailer 6
-
€2,398 EUR
View
B+
Retailer 7
-
€3,198 EUR
£2,813 GBP
View
Most Expensive
B
NZ Jewellers
cc0ead37-83b3-4bed-b6b1-2fefbdf3fea1 · Oct 30
€4,348 EUR
$4,858 USD
View
7 more retailers have this diamond
Prices start from €1,306 EURSave up to €3,042 EUR

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
€1,306 EUR