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Round|Natural|GIA

0.51ct E IF Round Natural Diamond

EX • E/IF • GIA 2557217675

Certificate GIA 2557217675

Diamond specifications and retailer prices

From $1,057 AUD
HK$5,800 HKD
As of October 30, 2026
Save $1,677 AUD (61%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,734 AUD at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2557217675. Listed at 20 retailers as of October 30, 2026, with prices from $1,057 to $2,734, a $1,677 spread on the same certified stone. Flawless Fine Jewelry lists it at $2,734. 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
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle31.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2557217675
Dimensions5.18 × 5.22 × 3.12 mm
L/W Ratio1.01
Top View
5.18 mm5.22 mm0.51 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557217675
Side View
Table 58.0%Crown 31.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $2,734 AUD|Low: $1,057 AUD|High: $2,886 AUD|Avg: $1,638 AUD|-5.3%
Flawless Fine Jewelry
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
October 31, 2026
Retailer 4$1,057 AUD
Retailer 8$1,066 AUD
Retailer 7$1,258 AUD
Retailer 9$1,379 AUD
Retailer 6$1,398 AUD
Retailer 3$1,418 AUD
Retailer 5$1,475 AUD
Retailer 10$1,590 AUD
Retailer 13$1,602 AUD
Retailer 2$1,609 AUD
Retailer 12$1,852 AUD
Retailer 11$2,107 AUD
Retailer 14$2,504 AUD
Flawless Fine Jewelry$2,734 AUD

18 data points across 14 retailers

20 retailers$1,057 AUD to $2,734 AUD

A+
Cheapest Retailer
-
$1,057 AUD
HK$5,800 HKD
A+
Retailer 2
-
$1,066 AUD
₹71,332 INR
View
A
Retailer 3
-
$1,258 AUD
$884 USD
View
Final sale: no returns
A
Retailer 4
-
$1,379 AUD
$969 USD
View
Retailer 5
-
$1,398 AUD
$982 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$1,418 AUD
$996 USD
View
A
Retailer 7
-
$1,475 AUD
SGD 1,400 SGD
View
Retailer 8
-
$1,503 AUD
$1,056 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$1,582 AUD
$1,111 USD
View
Price last confirmed 32 days ago
A
Retailer 10
-
$1,590 AUD
£879 GBP
View
A
Retailer 11
-
$1,602 AUD
$1,125 USD
View
A
Retailer 12
-
$1,609 AUD
£890 GBP
View
Retailer 13
-
$1,734 AUD
$1,218 USD
View
Price last confirmed 29 days ago
A
Retailer 14
-
$1,852 AUD
€1,239 EUR
View
Retailer 15
-
$1,902 AUD
$1,336 USD
View
Price last confirmed 23 days ago
A
Retailer 16
-
$1,960 AUD
View
Retailer 17
-
$1,965 AUD
View
Price last confirmed 27 days ago
A
Retailer 18
-
$2,107 AUD
ZAR 23,911 ZAR
View
A
Retailer 19
-
$2,504 AUD
£1,385 GBP
View
Most Expensive
B+
Flawless Fine Jewelry
4DB39DAC3 · Oct 31
$2,734 AUD
£1,512 GBP
View
19 more retailers have this diamond
Prices start from $1,057 AUDSave up to $1,677 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
$1,057 AUD