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Round|Natural|GIA

1.23ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3495150691

Certificate GIA 3495150691

Diamond specifications and retailer prices

From $2,094 USD
As of October 26, 2026
Save $2,898 USD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,992 USD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3495150691. Listed at 16 retailers as of October 26, 2026, with prices from $2,094 to $4,992, a $2,898 spread on the same certified stone. NZ Jewellers lists it at $4,992. 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

1.23
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3495150691
Dimensions6.87 × 6.85 × 4.24 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.87 mm6.85 mm1.23 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3495150691
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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 26
Current: $4,992 USD|Low: $2,020 USD|High: $4,992 USD|Avg: $2,738 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 14$2,094 USD
Retailer 15$2,156 USD
Retailer 12$2,190 USD
Retailer 13$2,203 USD
Retailer 7$2,224 USD
Retailer 16$2,293 USD
Retailer 4$2,388 USD
Retailer 6$2,388 USD
Retailer 3$2,498 USD
Retailer 8$2,527 USD
Retailer 9$2,536 USD
Retailer 11$2,737 USD
Retailer 5$2,755 USD
Retailer 2$2,981 USD
Retailer 10$4,205 USD
NZ Jewellers$4,992 USD

39 data points across 16 retailers

16 retailers$2,094 USD to $4,992 USD

A
Cheapest Retailer
-
$2,094 USD
A
Retailer 2
-
$2,156 USD
View
A
Retailer 3
-
$2,190 USD
View
Retailer 4
-
$2,200 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$2,203 USD
View
Final sale: no returns
Retailer 6
-
$2,293 USD
£1,806 GBP
View
Price last confirmed 30 days ago
A
Retailer 7
-
$2,388 USD
View
A
Retailer 8
-
$2,388 USD
View
A
Retailer 9
-
$2,498 USD
View
A
Retailer 10
-
$2,527 USD
View
A
Retailer 11
-
$2,536 USD
£1,997 GBP
View
A
Retailer 12
-
$2,737 USD
£2,155 GBP
View
A
Retailer 13
-
$2,755 USD
View
B+
Retailer 14
-
$2,981 USD
€2,839 EUR
View
B+
Retailer 15
-
$4,205 USD
£3,311 GBP
View
Most Expensive
B
NZ Jewellers
236d964f-82f4-49e9-ab05-5e8201d80b69 · Oct 30
$4,992 USD
View
15 more retailers have this diamond
Prices start from $2,094 USDSave up to $2,898 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
$2,094 USD