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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 $1,510 USD
HK$11,800 HKD
As of November 1, 2026
Save $2,805 USD (65%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,315 USD at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from $1,510 to $4,315, a $2,805 spread on the same certified stone. NZ Jewellers lists it at $4,315. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,315 USD|Low: $1,498 USD|High: $4,395 USD|Avg: $2,590 USD|-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 2, 2026
Retailer 14$1,510 USD
Retailer 17$1,787 USD
Retailer 4$1,864 USD
Retailer 6$1,904 USD
Retailer 3$1,983 USD
Retailer 11$2,076 USD
Retailer 9$2,102 USD
Retailer 7$2,226 USD
Retailer 18$2,369 USD
Retailer 16$2,381 USD
Retailer 2$2,396 USD
Retailer 8$2,433 USD
Retailer 10$2,592 USD
Retailer 12$2,807 USD
Retailer 5$2,903 USD
Retailer 15$3,208 USD
Retailer 13$3,616 USD
NZ Jewellers$4,315 USD

33 data points across 18 retailers

18 retailers$1,510 USD to $4,315 USD

A
Cheapest Retailer
-
$1,510 USD
HK$11,800 HKD
A
Retailer 2
-
$1,787 USD
View
B+
Retailer 3
-
$1,864 USD
View
B+
Retailer 4
-
$1,904 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,983 USD
SGD 2,680 SGD
View
B+
Retailer 6
-
$2,076 USD
£1,635 GBP
View
B+
Retailer 7
-
$2,102 USD
SGD 2,840 SGD
View
B+
Retailer 8
-
$2,226 USD
View
B+
Retailer 9
-
$2,369 USD
£1,865 GBP
View
B+
Retailer 10
-
$2,381 USD
View
B+
Retailer 11
-
$2,396 USD
£1,887 GBP
View
B+
Retailer 12
-
$2,433 USD
View
Retailer 13
-
$2,592 USD
A$3,988 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$2,807 USD
€2,673 EUR
View
B
Retailer 15
-
$2,903 USD
View
B
Retailer 16
-
$3,208 USD
ZAR 51,830 ZAR
View
B
Retailer 17
-
$3,616 USD
£2,847 GBP
View
Most Expensive
B
NZ Jewellers
4b4e6f3a-5a69-48da-83f7-7f7207bbf84e · Oct 30
$4,315 USD
View
17 more retailers have this diamond
Prices start from $1,510 USDSave up to $2,805 USD

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
$1,510 USD