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Round|Natural|GIA

2.50ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 5556971344

Certificate GIA 5556971344

Diamond specifications and retailer prices

From $13,854 AUD
SGD 13,151 SGD
As of October 30, 2026
Save $7,920 AUD (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $21,774 AUD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5556971344. Listed at 13 retailers as of October 29, 2026, with prices from $13,854 to $21,774, a $7,920 spread on the same certified stone. Helzberg Diamonds lists it at $21,774. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.50
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556971344
Dimensions8.44 × 8.48 × 5.46 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.44 mm8.48 mm2.50 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556971344
Side View
Table 55.0%Crown 37.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.6%

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 30
Current: $21,774 AUD|Low: $13,854 AUD|High: $22,319 AUD|Avg: $17,238 AUD|-2.4%
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
October 30, 2026
Retailer 8$13,854 AUD
Retailer 10$14,306 AUD
Retailer 12$15,035 AUD
Retailer 7$15,116 AUD
Retailer 5$15,158 AUD
Retailer 9$15,314 AUD
Retailer 11$16,123 AUD
Retailer 4$17,625 AUD
Retailer 6$17,767 AUD
Retailer 13$17,794 AUD
Retailer 3$18,427 AUD
Retailer 2$20,419 AUD
Helzberg Diamonds$21,774 AUD

24 data points across 13 retailers

13 retailers$13,854 AUD to $21,774 AUD

A
Cheapest Retailer
-
$13,854 AUD
SGD 13,151 SGD
A
Retailer 2
-
$14,306 AUD
$10,049 USD
View
A
Retailer 3
-
$15,035 AUD
$10,561 USD
View
A
Retailer 4
-
$15,116 AUD
£8,361 GBP
View
A
Retailer 5
-
$15,158 AUD
$10,648 USD
View
A
Retailer 6
-
$15,314 AUD
$10,757 USD
View
A
Retailer 7
-
$16,123 AUD
SGD 15,305 SGD
View
A
Retailer 8
-
$17,625 AUD
$12,381 USD
View
A
Retailer 9
-
$17,767 AUD
€11,886 EUR
View
A
Retailer 10
-
$17,794 AUD
$12,499 USD
View
B+
Retailer 11
-
$18,427 AUD
$12,944 USD
View
B+
Retailer 12
-
$20,419 AUD
$14,343 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRLLLMPNHJKK · Oct 29
$21,774 AUD
$15,295 USD
View
12 more retailers have this diamond
Prices start from $13,854 AUDSave up to $7,920 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
2.50ct Round
$13,854 AUD