Radiant|Natural|GIA

1.02ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 2171029323

Certificate GIA 2171029323

Diamond specifications and retailer prices

From $1,649 USD
As of November 6, 2026
Save $873 USD (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,522 USD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2171029323. Listed at 4 retailers as of November 6, 2026, with prices from $1,649 to $2,522, a $873 spread on the same certified stone. 77 Diamonds lists it at $2,522. 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

1.02
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2171029323
Dimensions6.53 × 5.28 × 3.32 mm
L/W Ratio1.24
Top View
6.53 mm5.28 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2171029323
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $2,522 USD|Low: $1,649 USD|High: $2,550 USD|Avg: $2,091 USD|+0.1%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2$1,649 USD
77 Diamonds$2,522 USD

34 data points across 2 retailers

4 retailers$1,649 USD to $2,522 USD

B+
Cheapest Retailer
-
$1,649 USD
B+
Retailer 2
-
$1,669 USD
View
B+
Retailer 3
-
$1,741 USD
View
Most Expensive
B
77 Diamonds
RADMBSTGGDESZ · Nov 7
$2,522 USD
£1,986 GBP
View
3 more retailers have this diamond
Prices start from $1,649 USDSave up to $873 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+
1.02ct Radiant
$1,649 USD