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Round|Natural|GIA

1.29ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2235374259

Certificate GIA 2235374259

Diamond specifications and retailer prices

From $3,560 USD
As of October 30, 2026
Save $1,811 USD (34%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,371 USD at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235374259. Listed at 11 retailers as of October 30, 2026, with prices from $3,560 to $5,371, a $1,811 spread on the same certified stone. Riddles Jewelry lists it at $5,371. 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

1.29
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235374259
Dimensions7.08 × 7.12 × 4.24 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Top View
7.08 mm7.12 mm1.29 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2235374259
Side View
Table 61.0%Crown 34°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 59.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $5,117 USD|Low: $3,514 USD|High: $5,151 USD|Avg: $4,467 USD|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4$3,560 USD
Retailer 3$4,298 USD
Retailer 2$4,997 USD
Retailer 1$5,117 USD

39 data points across 4 retailers

11 retailers$3,560 USD to $5,371 USD

A
Cheapest Retailer
-
$3,560 USD
A
Retailer 2
-
$3,585 USD
View
B+
Retailer 3
-
$3,729 USD
View
B+
Retailer 4
-
$3,864 USD
A$5,945 AUD
View
B+
Retailer 5
-
$3,991 USD
CA$5,543 CAD
View
Retailer 6
-
$4,298 USD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$4,298 USD
View
B
Retailer 8
-
$4,604 USD
View
B
Retailer 9
-
$4,997 USD
€4,759 EUR
View
B
Retailer 10
-
$5,117 USD
£4,029 GBP
View
Most Expensive
B
Riddles Jewelry
1769430345 · Oct 31
$5,371 USD
View
10 more retailers have this diamond
Prices start from $3,560 USDSave up to $1,811 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
1.29ct Round
$3,560 USD