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Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551816597

Certificate GIA 7551816597

Diamond specifications and retailer prices

From $3,871 NZD
As of November 5, 2026
Save $1,539 NZD (28%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,872 NZD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 7551816597. Listed at 15 retailers as of November 5, 2026, with a 40% 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
FluorescenceStrong
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551816597
Dimensions6.98 × 7.01 × 4.29 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.98 mm7.01 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7551816597
Side View
Table 58.0%Crown 32.5°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 61.3%

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 5
Current: $3,871 NZD|Low: $3,850 NZD|High: $7,208 NZD|Avg: $5,049 NZD|-6.9%
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
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$3,871 NZD
Retailer 11$4,066 NZD
Retailer 10$4,145 NZD
Retailer 9$4,180 NZD
Retailer 8$4,488 NZD
Retailer 4$4,551 NZD
Retailer 12$4,672 NZD
Retailer 2$4,930 NZD
Retailer 3$5,170 NZD
Retailer 6$5,222 NZD
Retailer 7$5,242 NZD
Retailer 5$5,477 NZD
Retailer 13$6,373 NZD
Wholesale Diamonds Direct$6,872 NZD

27 data points across 14 retailers

15 retailers$3,871 NZD to $5,410 NZD

A
Cheapest Retailer
-
$3,871 NZD
Retailer 2
-
$4,066 NZD
View
Price last confirmed 8 days ago
Retailer 3
-
$4,145 NZD
View
Price last confirmed 8 days ago
Retailer 4
-
$4,180 NZD
View
Price last confirmed 10 days ago
Retailer 5
-
$4,488 NZD
View
Price last confirmed 8 days ago
Retailer 6
-
$4,551 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$4,672 NZD
View
A
Retailer 8
-
$4,930 NZD
View
A
Retailer 9
-
$5,170 NZD
View
A
Retailer 10
-
$5,222 NZD
View
Retailer 11
-
$5,242 NZD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$5,410 NZD
View
Retailer 13
-
$5,477 NZD
View
Price last confirmed 12 days ago
Retailer 14
-
$6,373 NZD
View
Price last confirmed 8 days ago
Most Expensive
Wholesale Diamonds Direct
611240164 · Oct 26
$6,872 NZD
$3,809 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from $3,871 NZDSave up to $1,539 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
$3,871 NZD