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Round|Natural|GIA

0.51ct D FL Round Natural Diamond

EX • D/FL • GIA 6551574139

Certificate GIA 6551574139

Diamond specifications and retailer prices

From $2,153 AUD
As of November 4, 2026
Save $3,999 AUD (65%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,151 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6551574139. Listed at 18 retailers as of November 4, 2026, with prices from $2,153 to $6,151, a $3,999 spread on the same certified stone. NZ Jewellers lists it at $6,151. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551574139
Dimensions5.09 × 5.12 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.09 mm5.12 mm0.51 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551574139
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: Nov 4
Current: $6,151 AUD|Low: $2,134 AUD|High: $6,265 AUD|Avg: $3,650 AUD|-1.8%
NZ Jewellers
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
Retailer 17
Retailer 18
November 5, 2026
Retailer 15$2,153 AUD
Retailer 18$2,547 AUD
Retailer 4$2,657 AUD
Retailer 6$2,714 AUD
Retailer 14$2,837 AUD
Retailer 2$2,931 AUD
Retailer 9$2,995 AUD
Retailer 7$3,173 AUD
Retailer 3$3,376 AUD
Retailer 17$3,394 AUD
Retailer 12$3,408 AUD
Retailer 8$3,467 AUD
Retailer 10$3,695 AUD
Retailer 13$4,001 AUD
Retailer 5$4,138 AUD
Retailer 16$4,573 AUD
Retailer 11$5,140 AUD
NZ Jewellers$6,151 AUD

33 data points across 18 retailers

18 retailers$2,153 AUD to $6,151 AUD

A
Cheapest Retailer
-
$2,153 AUD
A
Retailer 2
-
$2,547 AUD
View
B+
Retailer 3
-
$2,657 AUD
View
B+
Retailer 4
-
$2,714 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,837 AUD
View
B+
Retailer 6
-
$2,931 AUD
View
Retailer 7
-
$2,995 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,173 AUD
View
B+
Retailer 9
-
$3,376 AUD
View
B+
Retailer 10
-
$3,394 AUD
View
B+
Retailer 11
-
$3,408 AUD
View
B+
Retailer 12
-
$3,467 AUD
View
Retailer 13
-
$3,695 AUD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$4,001 AUD
View
B
Retailer 15
-
$4,138 AUD
View
B
Retailer 16
-
$4,573 AUD
View
B
Retailer 17
-
$5,140 AUD
View
Most Expensive
B
NZ Jewellers
4b4e6f3a-5a69-48da-83f7-7f7207bbf84e · Nov 4
$6,151 AUD
$4,315 USD
View
17 more retailers have this diamond
Prices start from $2,153 AUDSave up to $3,999 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
0.51ct Round
$2,153 AUD