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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 7538261593

Certificate GIA 7538261593

Diamond specifications and retailer prices

From $14,856 AUD
SGD 14,102 SGD
As of October 31, 2026
Save $12,679 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $27,535 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 7538261593. Listed at 13 retailers as of October 30, 2026, with prices from $14,856 to $27,535, a $12,679 spread on the same certified stone. NZ Jewellers lists it at $27,535. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 7538261593
Dimensions8.50 × 8.42 × 5.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
8.50 mm8.42 mm2.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538261593
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 63.9%

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: $27,535 AUD|Low: $14,856 AUD|High: $27,535 AUD|Avg: $20,684 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7$14,856 AUD
Retailer 6$16,374 AUD
Retailer 4$17,690 AUD
Retailer 9$18,236 AUD
Retailer 3$19,066 AUD
Retailer 8$20,515 AUD
Retailer 2$20,818 AUD
Retailer 5$25,941 AUD
NZ Jewellers$27,535 AUD

37 data points across 9 retailers

13 retailers$14,856 AUD to $27,535 AUD

Retailer 1
-
$14,323 AUD
HK$78,600 HKD
Price last confirmed 57 days ago
A
Retailer 2
-
$14,856 AUD
SGD 14,102 SGD
View
A
Retailer 3
-
$16,374 AUD
$11,502 USD
View
A
Retailer 4
-
$16,918 AUD
$11,884 USD
View
A
Retailer 5
-
$16,945 AUD
$11,903 USD
View
A
Retailer 6
-
$17,690 AUD
£9,784 GBP
View
A
Retailer 7
-
$18,236 AUD
$12,810 USD
View
A
Retailer 8
-
$19,066 AUD
£10,545 GBP
View
Retailer 9
-
$19,452 AUD
$13,664 USD
View
Price last confirmed 32 days ago
A
Retailer 10
-
$20,515 AUD
$14,411 USD
View
A
Retailer 11
-
$20,818 AUD
€13,927 EUR
View
A
Retailer 12
-
$25,941 AUD
£14,348 GBP
View
Most Expensive
B+
NZ Jewellers
db261ead-62b1-416c-9332-9de4cecf5d26 · Oct 30
$27,535 AUD
$19,342 USD
View
12 more retailers have this diamond
Prices start from $14,856 AUDSave up to $12,679 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
2.51ct Round
$14,856 AUD