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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 $1,865 SGD
HK$11,400 HKD
As of October 31, 2026
Save $4,345 SGD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,210 SGD 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 $1,865 to $6,210, a $4,345 spread on the same certified stone. NZ Jewellers lists it at $6,210. 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: Oct 31
Current: $6,210 SGD|Low: $1,849 SGD|High: $6,210 SGD|Avg: $3,406 SGD|+4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3$1,865 SGD
Retailer 5$2,458 SGD
Retailer 2$2,547 SGD
Retailer 7$2,723 SGD
Retailer 4$2,811 SGD
Retailer 6$3,522 SGD
Retailer 8$4,567 SGD
NZ Jewellers$6,210 SGD

41 data points across 8 retailers

8 retailers$1,865 SGD to $6,210 SGD

A
Cheapest Retailer
-
$1,865 SGD
HK$11,400 HKD
A
Retailer 2
-
$2,458 SGD
£1,514 GBP
View
A
Retailer 3
-
$2,547 SGD
$1,992 USD
View
A
Retailer 4
-
$2,723 SGD
$2,130 USD
View
A
Retailer 5
-
$2,811 SGD
$2,199 USD
View
B+
Retailer 6
-
$3,522 SGD
€2,624 EUR
View
B+
Retailer 7
-
$4,567 SGD
£2,813 GBP
View
Most Expensive
B
NZ Jewellers
cc0ead37-83b3-4bed-b6b1-2fefbdf3fea1 · Oct 30
$6,210 SGD
$4,858 USD
View
7 more retailers have this diamond
Prices start from $1,865 SGDSave up to $4,345 SGD

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
$1,865 SGD