CaratHunter
Plans
Round|Natural|GIA

1.29ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5241083858

Certificate GIA 5241083858

Diamond specifications and retailer prices

From €1,979 EUR
SGD 2,988 SGD
As of October 31, 2026
Save €1,718 EUR (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,698 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241083858. Listed at 16 retailers as of October 31, 2026, with prices from €1,979 to €3,698, a €1,718 spread on the same certified stone. Helzberg Diamonds lists it at €3,698. 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

1.29
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5241083858
Dimensions6.94 × 6.97 × 4.33 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.94 mm6.97 mm1.29 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5241083858
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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: €3,698 EUR|Low: €1,979 EUR|High: €3,698 EUR|Avg: €2,576 EUR
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 13€1,979 EUR
Retailer 8€2,072 EUR
Retailer 5€2,090 EUR
Retailer 14€2,113 EUR
Retailer 15€2,148 EUR
Retailer 3€2,150 EUR
Retailer 2€2,308 EUR
Retailer 7€2,341 EUR
Retailer 16€2,530 EUR
Retailer 6€2,644 EUR
Retailer 10€2,696 EUR
Retailer 12€2,740 EUR
Retailer 9€2,760 EUR
Retailer 4€3,277 EUR
Retailer 11€3,500 EUR
Helzberg Diamonds€3,698 EUR

34 data points across 16 retailers

16 retailers€1,979 EUR to €3,698 EUR

A
Cheapest Retailer
-
€1,979 EUR
SGD 2,988 SGD
A
Retailer 2
-
€2,072 EUR
$2,315 USD
View
A
Retailer 3
-
€2,090 EUR
$2,335 USD
View
A
Retailer 4
-
€2,113 EUR
$2,361 USD
View
A
Retailer 5
-
€2,148 EUR
$2,400 USD
View
A
Retailer 6
-
€2,150 EUR
$2,402 USD
View
B+
Retailer 7
-
€2,308 EUR
£2,030 GBP
View
B+
Retailer 8
-
€2,341 EUR
SGD 3,534 SGD
View
B+
Retailer 9
-
€2,530 EUR
$2,827 USD
View
B+
Retailer 10
-
€2,644 EUR
$2,954 USD
View
B+
Retailer 11
-
€2,696 EUR
$3,012 USD
View
B+
Retailer 12
-
€2,740 EUR
£2,410 GBP
View
B+
Retailer 13
-
€2,760 EUR
View
B
Retailer 14
-
€3,277 EUR
$3,661 USD
View
B
Retailer 15
-
€3,500 EUR
$3,911 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKHGOJOLO · Oct 31
€3,698 EUR
$4,131 USD
View
15 more retailers have this diamond
Prices start from €1,979 EURSave up to €1,718 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
1.29ct Round
€1,979 EUR