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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 5242063572

Certificate GIA 5242063572

Diamond specifications and retailer prices

From $27,260 AUD
SGD 25,877 SGD
As of November 1, 2026
Save $23,636 AUD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $50,897 AUD at With Clarity · As of November 1, 2026
View at With Clarity

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5242063572. Listed at 15 retailers as of November 1, 2026, with prices from $27,260 to $50,897, a $23,636 spread on the same certified stone. With Clarity lists it at $50,897. 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

2.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5242063572
Dimensions8.41 × 8.46 × 5.45 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.41 mm8.46 mm2.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242063572
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $29,093 AUD|Low: $27,260 AUD|High: $50,897 AUD|Avg: $34,425 AUD|-3.4%
Retailer 1
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
With Clarity
November 2, 2026
Retailer 5$27,260 AUD
Retailer 1$29,093 AUD
Retailer 14$29,289 AUD
Retailer 4$29,753 AUD
Retailer 9$29,860 AUD
Retailer 6$30,410 AUD
Retailer 10$30,742 AUD
Retailer 11$31,109 AUD
Retailer 13$34,326 AUD
Retailer 8$34,833 AUD
Retailer 3$35,034 AUD
Retailer 12$36,692 AUD
Retailer 7$41,861 AUD
Retailer 2$43,934 AUD
With Clarity$50,897 AUD

38 data points across 15 retailers

15 retailers$27,260 AUD to $50,897 AUD

B+
Cheapest Retailer
-
$27,260 AUD
SGD 25,877 SGD
B+
Retailer 2
-
$29,093 AUD
£16,092 GBP
View
B+
Retailer 3
-
$29,289 AUD
$20,574 USD
View
B+
Retailer 4
-
$29,753 AUD
$20,900 USD
View
B+
Retailer 5
-
$29,860 AUD
$20,975 USD
View
B+
Retailer 6
-
$30,410 AUD
$21,361 USD
View
B+
Retailer 7
-
$30,742 AUD
SGD 29,182 SGD
View
B+
Retailer 8
-
$31,109 AUD
$21,852 USD
View
B
Retailer 9
-
$34,326 AUD
$24,112 USD
View
B
Retailer 10
-
$34,833 AUD
€23,303 EUR
View
B
Retailer 11
-
$35,034 AUD
$24,609 USD
View
B
Retailer 12
-
$36,692 AUD
$25,774 USD
View
B
Retailer 13
-
$41,861 AUD
$29,405 USD
View
B
Retailer 14
-
$43,934 AUD
$30,861 USD
View
Most Expensive
B
With Clarity
5242063572 · Nov 1
$50,897 AUD
$35,752 USD
View
14 more retailers have this diamond
Prices start from $27,260 AUDSave up to $23,636 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.

B+
2.51ct Round
$27,260 AUD