Radiant|Natural|GIA

1.03ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1377931134

Certificate GIA 1377931134

Diamond specifications and retailer prices

From $2,445 USD
As of November 5, 2026
Save $1,312 USD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,757 USD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1.03ct natural radiant diamond

This 1.03ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1377931134. Listed at 11 retailers as of November 5, 2026, with prices from $2,445 to $3,757, a $1,312 spread on the same certified stone. Washington Diamond lists it at $3,757. 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

1.03
Carat
I
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1377931134
Dimensions5.59 × 5.40 × 3.82 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.59 mm5.40 mm1.03 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1377931134
Side View
Table 63.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 70.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $3,302 USD|Low: $2,445 USD|High: $3,757 USD|Avg: $2,863 USD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Washington Diamond
November 6, 2026
Retailer 3$2,445 USD
Retailer 2$2,460 USD
Retailer 7$2,615 USD
Retailer 11$2,648 USD
Retailer 4$2,749 USD
Retailer 6$2,801 USD
Retailer 13$2,966 USD
Retailer 9$2,970 USD
Retailer 10$2,970 USD
Retailer 12$2,989 USD
Retailer 8$3,070 USD
Retailer 5$3,197 USD
Retailer 1$3,302 USD
Washington Diamond$3,757 USD

19 data points across 14 retailers

11 retailers$2,445 USD to $3,757 USD

B
Cheapest Retailer
-
$2,445 USD
B
Retailer 2
-
$2,460 USD
View
B
Retailer 3
-
$2,615 USD
View
B
Retailer 4
-
$2,648 USD
View
B
Retailer 5
-
$2,966 USD
View
B
Retailer 6
-
$2,970 USD
View
B
Retailer 7
-
$2,970 USD
View
B
Retailer 8
-
$2,989 USD
View
B
Retailer 9
-
$3,070 USD
View
B
Retailer 10
-
$3,302 USD
View
Most Expensive
C
Washington Diamond
1917994528 · Nov 6
$3,757 USD
View
10 more retailers have this diamond
Prices start from $2,445 USDSave up to $1,312 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
1.03ct Radiant
$2,445 USD