Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551816597

Certificate GIA 7551816597

Diamond specifications and retailer prices

From $2,146 USD
As of November 5, 2026
Save $1,387 USD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,809 USD 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 October 30, 2026, with a 65% 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
Color
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: $2,146 USD|Low: $2,134 USD|High: $3,996 USD|Avg: $2,799 USD|-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$2,146 USD
Retailer 11$2,254 USD
Retailer 10$2,298 USD
Retailer 9$2,317 USD
Retailer 8$2,488 USD
Retailer 4$2,523 USD
Retailer 12$2,590 USD
Retailer 2$2,733 USD
Retailer 3$2,866 USD
Retailer 6$2,895 USD
Retailer 7$2,906 USD
Retailer 5$3,036 USD
Retailer 13$3,533 USD
Wholesale Diamonds Direct$3,809 USD

27 data points across 14 retailers

15 retailers$2,146 USD to $3,533 USD

A
Cheapest Retailer
-
$2,146 USD
A
Retailer 2
-
$2,254 USD
View
Retailer 3
-
$2,298 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$2,317 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$2,488 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$2,523 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$2,590 USD
View
A
Retailer 8
-
$2,733 USD
View
A
Retailer 9
-
$2,866 USD
View
A
Retailer 10
-
$2,895 USD
View
Retailer 11
-
$2,906 USD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$2,999 USD
View
Retailer 13
-
$3,036 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$3,533 USD
View
Most Expensive
Wholesale Diamonds Direct
611240164 · Oct 26
$3,809 USD
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $2,146 USDSave up to $1,387 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
$2,146 USD