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Radiant|Natural|GIA

0.51ct H IF Radiant Natural Diamond

EX • H/IF • GIA 2508776882

Certificate GIA 2508776882

Diamond specifications and retailer prices

From $1,415 NZD
$796 USD
As of November 2, 2026
Save $2,343 NZD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,758 NZD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2508776882. Listed at 18 retailers as of October 28, 2026, with prices from $1,415 to $3,758, a $2,343 spread on the same certified stone. Queensmith lists it at $3,758. 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
H
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2508776882
Dimensions4.29 × 4.28 × 2.93 mm
L/W Ratio1.00
Top View
4.29 mm4.28 mm0.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2508776882
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.5%

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 2
Current: $3,758 NZD|Low: $1,415 NZD|High: $3,769 NZD|Avg: $2,458 NZD|+3.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 11$1,415 NZD
Retailer 4$1,511 NZD
Retailer 9$1,532 NZD
Retailer 10$1,758 NZD
Retailer 2$1,980 NZD
Retailer 8$2,120 NZD
Retailer 6$2,381 NZD
Retailer 3$2,544 NZD
Retailer 7$2,611 NZD
Retailer 5$3,099 NZD
Queensmith$3,758 NZD

41 data points across 11 retailers

18 retailers$1,415 NZD to $3,758 NZD

A
Cheapest Retailer
-
$1,415 NZD
$796 USD
Final sale: no returns
B+
Retailer 2
-
$1,511 NZD
$850 USD
View
B+
Retailer 3
-
$1,532 NZD
$862 USD
View
B+
Retailer 4
-
$1,552 NZD
$873 USD
View
B+
Retailer 5
-
$1,714 NZD
$964 USD
View
B+
Retailer 6
-
$1,758 NZD
$989 USD
View
B+
Retailer 7
-
$1,813 NZD
$1,020 USD
View
B+
Retailer 8
-
$1,813 NZD
$1,020 USD
View
B+
Retailer 9
-
$1,822 NZD
$1,025 USD
View
B+
Retailer 10
-
$1,866 NZD
$1,050 USD
View
B+
Retailer 11
-
$1,980 NZD
£877 GBP
View
B+
Retailer 12
-
$2,120 NZD
£939 GBP
View
B
Retailer 13
-
$2,381 NZD
€1,276 EUR
View
Retailer 14
-
$2,544 NZD
A$2,202 AUD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$2,611 NZD
ZAR 23,735 ZAR
View
B
Retailer 16
-
$3,099 NZD
£1,373 GBP
View
B
Retailer 17
-
$3,386 NZD
£1,500 GBP
View
Most Expensive
B
Queensmith
2508776882 · Oct 28
$3,758 NZD
£1,665 GBP
View
17 more retailers have this diamond
Prices start from $1,415 NZDSave up to $2,343 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 Radiant
$1,415 NZD