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Radiant|Natural|GIA

1.31ct H SI1 Radiant Natural Diamond

H/SI1

Diamond specifications and retailer prices

From $4,990 USD
CA$6,930 CAD
Save $811 USD (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $9,823 USD at NZ Jewellers
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 3 retailers, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.31
Carat
H
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions8.47 × 5.29 × 3.40 mm
L/W Ratio1.60
Top View
8.47 mm5.29 mm1.31 ctH / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCuletDepth 64.2%

Caratlytics Score

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

Price History

Last verified: Sep 29
Current: $9,823 USD|Low: $4,990 USD|High: $9,823 USD|Avg: $6,201 USD
NZ Jewellers
Retailer 2
Retailer 3
September 25, 2026
Retailer 2$4,990 USD
Retailer 3$5,801 USD
NZ Jewellers$9,823 USD

3 data points across 3 retailers

3 retailers$4,990 USD to $5,801 USD

B
Cheapest Retailer
-
$4,990 USD
CA$6,930 CAD
B
Retailer 2
-
$5,801 USD
View
Most Expensive
C
NZ Jewellers
5a047d7e-829f-4ea6-a2c7-552b930b1e72 · Sep 30
$9,823 USD
View
Price under review
2 more retailers have this diamond
Prices start from $4,990 USDSave up to $811 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.

B
1.31ct Radiant
$4,990 USD