Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552135118

Certificate GIA 6552135118

Diamond specifications and retailer prices

From $6,521 NZD
As of November 3, 2026
Save $4,869 NZD (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,868 NZD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552135118. Listed at 13 retailers as of November 1, 2026, with a 75% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552135118
Dimensions7.05 × 7.01 × 4.22 mm
L/W Ratio1.01
Star length45%
Top View
7.05 mm7.01 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552135118
Side View
Table 59.0%Crown 33°GirdlePavilion 40.8°Culet: NoneDepth 60.0%

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: Nov 3
Current: $7,075 NZD|Low: $6,287 NZD|High: $11,850 NZD|Avg: $7,781 NZD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 12$6,287 NZD
Retailer 13$6,521 NZD
Retailer 7$6,552 NZD
Retailer 3$6,812 NZD
Retailer 4$7,071 NZD
Retailer 1$7,075 NZD
Retailer 5$7,272 NZD
Retailer 2$7,302 NZD
Retailer 11$7,356 NZD
Retailer 10$7,845 NZD
Retailer 6$7,944 NZD
Retailer 9$8,372 NZD
Retailer 8$11,390 NZD

23 data points across 13 retailers

13 retailers$6,521 NZD to $11,390 NZD

A
Cheapest Retailer
-
$6,521 NZD
A
Retailer 2
-
$6,552 NZD
View
Retailer 3
-
$6,812 NZD
View
Price last confirmed 30 days ago
Retailer 4
-
$7,071 NZD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$7,075 NZD
View
Retailer 6
-
$7,302 NZD
View
Price last confirmed 34 days ago
B+
Retailer 7
-
$7,356 NZD
View
B+
Retailer 8
-
$7,845 NZD
View
Retailer 9
-
$7,860 NZD
View
Price last confirmed 36 days ago
B+
Retailer 10
-
$7,944 NZD
View
B
Retailer 11
-
$8,372 NZD
View
B
Retailer 12
-
$11,390 NZD
View
Most Expensive
NZ Jewellers
0f788a29-1646-44e9-927e-51f021c4856d · Oct 3
$11,868 NZD
$6,579 USD
View
Price last confirmed 34 days ago
12 more retailers have this diamond
Prices start from $6,521 NZDSave up to $4,869 NZD

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
$6,521 NZD