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Round|Natural|GIA

0.51ct G IF Round Natural Diamond

EX • G/IF • GIA 1539312159

Certificate GIA 1539312159

Diamond specifications and retailer prices

From $1,154 NZD
As of November 6, 2026
Save $3,675 NZD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,829 NZD 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1539312159. Listed at 21 retailers as of November 4, 2026, with prices from $1,154 to $4,829, a $3,675 spread on the same certified stone. NZ Jewellers lists it at $4,829. 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
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1539312159
Dimensions5.13 × 5.10 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
5.13 mm5.10 mm0.51 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1539312159
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.3%

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: Nov 6
Current: $1,844 NZD|Low: $1,154 NZD|High: $2,848 NZD|Avg: $1,654 NZD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,156 NZD
Retailer 5$1,375 NZD
Retailer 9$1,420 NZD
Retailer 7$1,445 NZD
Retailer 3$1,550 NZD
Retailer 2$1,788 NZD
Retailer 1$1,844 NZD
Retailer 8$2,010 NZD
Retailer 6$2,819 NZD

31 data points across 9 retailers

21 retailers$1,154 NZD to $4,829 NZD

A
Cheapest Retailer
-
$1,154 NZD
A+
Retailer 2
-
$1,156 NZD
View
A
Retailer 3
-
$1,375 NZD
View
A
Retailer 4
-
$1,420 NZD
View
Final sale: no returns
A
Retailer 5
-
$1,430 NZD
View
Retailer 6
-
$1,432 NZD
View
Price last confirmed 9 days ago
Retailer 7
-
$1,445 NZD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$1,541 NZD
View
A
Retailer 9
-
$1,550 NZD
View
A
Retailer 10
-
$1,598 NZD
View
Retailer 11
-
$1,611 NZD
View
Price last confirmed 11 days ago
A
Retailer 12
-
$1,777 NZD
View
A
Retailer 13
-
$1,788 NZD
View
A
Retailer 14
-
$1,844 NZD
View
A
Retailer 15
-
$2,002 NZD
View
A
Retailer 16
-
$2,044 NZD
View
A
Retailer 17
-
$2,067 NZD
View
A
Retailer 18
-
$2,185 NZD
View
B+
Retailer 19
-
$2,504 NZD
View
B+
Retailer 20
-
$2,819 NZD
View
Most Expensive
B
NZ Jewellers
2845cd66-197e-4007-8645-2c2d595d4dea · Nov 4
$4,829 NZD
$2,677 USD
View
20 more retailers have this diamond
Prices start from $1,154 NZDSave up to $3,675 NZD

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
$1,154 NZD