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Round|Natural|GIA

1.29ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3555469223

Certificate GIA 3555469223

Diamond specifications and retailer prices

From $5,575 AUD
$3,916 USD
As of November 1, 2026
Save $2,411 AUD (30%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,986 AUD at 77 Diamonds · As of November 1, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555469223. Listed at 5 retailers as of November 1, 2026, with prices from $5,575 to $7,986, a $2,411 spread on the same certified stone. 77 Diamonds lists it at $7,986. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3555469223
Dimensions6.98 × 7.02 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
6.98 mm7.02 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555469223
Side View
Table 58.0%Crown 34°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $7,986 AUD|Low: $2,387 AUD|High: $8,037 AUD|Avg: $4,199 AUD|+104.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12$2,387 AUD
Retailer 3$2,575 AUD
Retailer 7$2,609 AUD
Retailer 11$3,173 AUD
Retailer 4$3,506 AUD
Retailer 10$3,515 AUD
Retailer 6$4,048 AUD
Retailer 8$5,509 AUD
Retailer 5$5,575 AUD
Retailer 2$5,801 AUD
Retailer 9$6,671 AUD
77 Diamonds$7,986 AUD

36 data points across 12 retailers

5 retailers$5,575 AUD to $7,986 AUD

Retailer 1
-
$3,980 AUD
$2,796 USD
Price last confirmed 40 days ago
B+
Retailer 2
-
$5,575 AUD
$3,916 USD
View
B+
Retailer 3
-
$5,801 AUD
$4,075 USD
View
Retailer 4
-
$7,961 AUD
$5,592 USD
View
Price last confirmed 43 days ago
Most Expensive
B
77 Diamonds
RBZDPUTZMZZ · Nov 1
$7,986 AUD
£4,417 GBP
View
4 more retailers have this diamond
Prices start from $5,575 AUDSave up to $2,411 AUD

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
$5,575 AUD