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Round|Natural|GIA

1.23ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 6551878261

Certificate GIA 6551878261

Diamond specifications and retailer prices

From $3,680 USD
As of November 4, 2026
Save $3,805 USD (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,485 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6551878261. Listed at 14 retailers as of November 4, 2026, with prices from $3,680 to $7,485, a $3,805 spread on the same certified stone. NZ Jewellers lists it at $7,485. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551878261
Dimensions6.80 × 6.84 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.80 mm6.84 mm1.23 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551878261
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,366 USD|Low: $3,680 USD|High: $6,925 USD|Avg: $4,726 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6$3,680 USD
Retailer 8$3,965 USD
Retailer 2$3,997 USD
Retailer 1$4,366 USD
Retailer 4$4,831 USD
Retailer 3$4,857 USD
Retailer 7$4,927 USD
Retailer 5$6,823 USD

34 data points across 8 retailers

14 retailers$3,680 USD to $7,485 USD

A
Cheapest Retailer
-
$3,680 USD
A
Retailer 2
-
$3,817 USD
View
A
Retailer 3
-
$3,965 USD
View
Final sale: no returns
A
Retailer 4
-
$3,997 USD
View
B+
Retailer 5
-
$4,296 USD
View
B+
Retailer 6
-
$4,296 USD
View
B+
Retailer 7
-
$4,366 USD
View
B+
Retailer 8
-
$4,575 USD
View
B+
Retailer 9
-
$4,586 USD
View
B+
Retailer 10
-
$4,831 USD
View
B+
Retailer 11
-
$4,857 USD
View
B+
Retailer 12
-
$4,957 USD
View
B
Retailer 13
-
$6,823 USD
View
Most Expensive
B
NZ Jewellers
ab6f146a-f1c5-444b-b828-013f84b0769d · Nov 5
$7,485 USD
View
13 more retailers have this diamond
Prices start from $3,680 USDSave up to $3,805 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.

A
1.23ct Round
$3,680 USD