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Round|Natural|GIA

0.51ct K I1 Round Natural Diamond

GD • K/I1 • GIA 2327890331

Certificate GIA 2327890331

Diamond specifications and retailer prices

From $596 AUD
As of November 5, 2026
Save $1,927 AUD (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,523 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and I1 clarity (included), with a standard cut grade and certified by GIA 2327890331. Listed at 6 retailers as of November 4, 2026, with prices from $596 to $2,523, a $1,927 spread on the same certified stone. NZ Jewellers lists it at $2,523. 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

0.51
Carat
K
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 2327890331
Dimensions4.89 × 4.91 × 3.20 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
4.89 mm4.91 mm0.51 ctK / I1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2327890331
Side View
Table 57.0%Crown 38.5°Girdle: Very ThickPavilion 40°Culet: Very SmallDepth 65.4%

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 5
Current: $2,523 AUD|Low: $596 AUD|High: $2,523 AUD|Avg: $972 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$596 AUD
Retailer 3$643 AUD
Retailer 7$643 AUD
Retailer 6$689 AUD
Retailer 4$726 AUD
Retailer 8$854 AUD
Retailer 2$986 AUD
Retailer 9$989 AUD
NZ Jewellers$2,523 AUD

15 data points across 9 retailers

6 retailers$596 AUD to $2,523 AUD

B+
Cheapest Retailer
-
$596 AUD
Retailer 2
-
$643 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$643 AUD
View
B
Retailer 4
-
$689 AUD
View
B
Retailer 5
-
$986 AUD
View
Most Expensive
C
NZ Jewellers
88dce006-d645-47b1-a61d-3f3dd913d9bf · Nov 4
$2,523 AUD
$1,766 USD
View
5 more retailers have this diamond
Prices start from $596 AUDSave up to $1,927 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+
0.51ct Round
$596 AUD