Round|Natural|GIA

1.29ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2235630969

Certificate GIA 2235630969

Diamond specifications and retailer prices

From $3,881 USD
As of November 6, 2026
Save $1,654 USD (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,535 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235630969. Listed at 4 retailers as of November 6, 2026, with prices from $3,881 to $5,535, a $1,654 spread on the same certified stone. 77 Diamonds lists it at $5,535. 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235630969
Dimensions7.01 × 7.05 × 4.27 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
7.01 mm7.05 mm1.29 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235630969
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,535 USD|Low: $3,828 USD|High: $5,646 USD|Avg: $4,739 USD|+0.5%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$3,881 USD
77 Diamonds$5,535 USD

32 data points across 2 retailers

4 retailers$3,881 USD to $5,535 USD

B+
Cheapest Retailer
-
$3,881 USD
B
Retailer 2
-
$3,916 USD
View
B
Retailer 3
-
$4,075 USD
View
Most Expensive
B
77 Diamonds
RBZXRC63FJV · Nov 6
$5,535 USD
£4,358 GBP
View
3 more retailers have this diamond
Prices start from $3,881 USDSave up to $1,654 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+
1.29ct Round
$3,881 USD