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Round|Natural|GIA

1.23ct I IF Round Natural Diamond

EX • I/IF • GIA 3555879457

Certificate GIA 3555879457

Diamond specifications and retailer prices

From $4,459 USD
As of October 30, 2026
Save $899 USD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,358 USD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 3555879457. Listed at 3 retailers as of October 30, 2026, with prices from $4,459 to $5,358, a $899 spread on the same certified stone. 77 Diamonds lists it at $5,358. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3555879457
Dimensions6.82 × 6.80 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.82 mm6.80 mm1.23 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555879457
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: Oct 30
Current: $5,358 USD|Low: $4,445 USD|High: $5,437 USD|Avg: $5,030 USD|+0.0%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$4,459 USD
Retailer 2$5,200 USD
77 Diamonds$5,358 USD

28 data points across 3 retailers

3 retailers$4,459 USD to $5,358 USD

A
Cheapest Retailer
-
$4,459 USD
B+
Retailer 2
-
$5,200 USD
View
Most Expensive
B+
77 Diamonds
RBCPZBFBEYVW · Nov 1
$5,358 USD
£4,219 GBP
View
2 more retailers have this diamond
Prices start from $4,459 USDSave up to $899 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
$4,459 USD