Radiant|Natural|GIA

0.51ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 2221035861

Certificate GIA 2221035861

Diamond specifications and retailer prices

From $870 USD
As of November 1, 2026
Save $1,035 USD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,538 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2221035861. Listed at 22 retailers as of November 1, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2221035861
Dimensions4.93 × 3.96 × 2.96 mm
L/W Ratio1.24
Culet sizeNone
Top View
4.93 mm3.96 mm0.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2221035861
Side View
Table 76.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,905 USD|Low: $725 USD|High: $1,929 USD|Avg: $1,267 USD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$870 USD
Retailer 10$870 USD
Retailer 2$943 USD
Retailer 9$1,095 USD
Retailer 3$1,196 USD
Retailer 4$1,220 USD
Retailer 7$1,304 USD
Retailer 5$1,344 USD
Retailer 11$1,360 USD
Retailer 6$1,606 USD
Retailer 1$1,905 USD

43 data points across 11 retailers

22 retailers$870 USD to $1,905 USD

B
Cheapest Retailer
-
$870 USD
B
Retailer 2
-
$870 USD
View
Final sale: no returns
B
Retailer 3
-
$931 USD
View
B
Retailer 4
-
$943 USD
View
B
Retailer 5
-
$943 USD
View
B
Retailer 6
-
$952 USD
View
B
Retailer 7
-
$979 USD
View
B
Retailer 8
-
$1,088 USD
View
B
Retailer 9
-
$1,095 USD
View
B
Retailer 10
-
$1,150 USD
View
B
Retailer 11
-
$1,150 USD
View
B
Retailer 12
-
$1,171 USD
View
B
Retailer 13
-
$1,190 USD
View
B
Retailer 14
-
$1,196 USD
View
B
Retailer 15
-
$1,220 USD
£961 GBP
View
B
Retailer 16
-
$1,304 USD
£1,027 GBP
View
B
Retailer 17
-
$1,344 USD
€1,280 EUR
View
Retailer 18
-
$1,360 USD
A$2,093 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$1,606 USD
ZAR 25,945 ZAR
View
C
Retailer 20
-
$1,686 USD
CA$2,342 CAD
View
B
Retailer 21
-
$1,905 USD
£1,500 GBP
View
Most Expensive
NZ Jewellers
0278a8b5-d79f-4106-b7d1-48121d563f08 · Oct 30
$2,538 USD
View
Price under review
21 more retailers have this diamond
Prices start from $870 USDSave up to $1,035 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.

B
0.51ct Radiant
$870 USD