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Radiant|Natural|GIA

0.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 1563729567

Certificate GIA 1563729567

Diamond specifications and retailer prices

From $386 USD
As of November 2, 2026
Save $1,407 USD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,793 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563729567. Listed at 15 retailers as of October 30, 2026, with prices from $386 to $1,793, a $1,407 spread on the same certified stone. NZ Jewellers lists it at $1,793. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563729567
Dimensions5.67 × 3.94 × 2.61 mm
L/W Ratio1.44
Girdle conditionPolished
Key to symbols
Twinning Wisp
Top View
5.67 mm3.94 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1563729567
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.3%

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: $1,793 USD|Low: $386 USD|High: $1,793 USD|Avg: $718 USD
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
November 2, 2026
Retailer 8$386 USD
Retailer 9$418 USD
Retailer 5$474 USD
Retailer 13$554 USD
Retailer 3$555 USD
Retailer 10$566 USD
Retailer 6$622 USD
Retailer 2$687 USD
Retailer 14$688 USD
Retailer 4$723 USD
Retailer 7$754 USD
Retailer 11$760 USD
Retailer 12$1,307 USD
NZ Jewellers$1,793 USD

6 data points across 14 retailers

15 retailers$386 USD to $1,793 USD

A
Cheapest Retailer
-
$386 USD
Final sale: no returns
A
Retailer 2
-
$418 USD
₹39,789 INR
View
A
Retailer 3
-
$474 USD
HK$3,700 HKD
View
A
Retailer 4
-
$554 USD
€528 EUR
View
A
Retailer 5
-
$555 USD
A$854 AUD
View
A
Retailer 6
-
$561 USD
View
A
Retailer 7
-
$566 USD
View
A
Retailer 8
-
$622 USD
View
A
Retailer 9
-
$687 USD
£541 GBP
View
B+
Retailer 10
-
$688 USD
View
B+
Retailer 11
-
$723 USD
View
B+
Retailer 12
-
$754 USD
€718 EUR
View
B+
Retailer 13
-
$760 USD
View
B
Retailer 14
-
$1,307 USD
£1,029 GBP
View
Most Expensive
B
NZ Jewellers
e782b7bf-767a-44c0-bde0-7d09fbe752b7 · Oct 30
$1,793 USD
View
14 more retailers have this diamond
Prices start from $386 USDSave up to $1,407 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 Radiant
$386 USD