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Round|Natural|GIA

1.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1375710423

Certificate GIA 1375710423

Diamond specifications and retailer prices

From $2,100 USD
As of November 1, 2026
Save $3,372 USD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,472 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1375710423. Listed at 13 retailers as of November 1, 2026, with prices from $2,100 to $5,472, a $3,372 spread on the same certified stone. NZ Jewellers lists it at $5,472. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1375710423
Dimensions6.51 × 6.47 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds, pinpoints and surface graining are not shown.
Top View
6.51 mm6.47 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1375710423
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,753 USD|Low: $2,100 USD|High: $4,640 USD|Avg: $2,833 USD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$2,100 USD
Retailer 9$2,141 USD
Retailer 8$2,287 USD
Retailer 7$2,365 USD
Retailer 2$2,480 USD
Retailer 10$2,548 USD
Retailer 1$2,753 USD
Retailer 3$3,194 USD
Retailer 4$3,247 USD
Retailer 5$4,573 USD

44 data points across 10 retailers

13 retailers$2,100 USD to $5,472 USD

B+
Cheapest Retailer
-
$2,100 USD
B+
Retailer 2
-
$2,141 USD
View
B+
Retailer 3
-
$2,287 USD
View
B
Retailer 4
-
$2,365 USD
View
B
Retailer 5
-
$2,371 USD
View
Retailer 6
-
$2,371 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$2,480 USD
View
B
Retailer 8
-
$2,736 USD
View
B
Retailer 9
-
$2,753 USD
View
B
Retailer 10
-
$3,194 USD
View
B
Retailer 11
-
$3,247 USD
View
B
Retailer 12
-
$4,573 USD
View
Most Expensive
B
NZ Jewellers
c17f7fe0-5094-48ee-a955-905dd99e7998 · Nov 5
$5,472 USD
View
12 more retailers have this diamond
Prices start from $2,100 USDSave up to $3,372 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 Round
$2,100 USD