Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6561017918

Certificate GIA 6561017918

Diamond specifications and retailer prices

From $1,971 USD
As of November 5, 2026
Save $423 USD (18%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,036 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 6561017918. Listed at 13 retailers as of October 30, 2026, with a relatively tight 21% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561017918
Dimensions6.91 × 6.94 × 4.35 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.91 mm6.94 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6561017918
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: $1,971 USD|Low: $1,960 USD|High: $4,402 USD|Avg: $2,979 USD|-8.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$1,971 USD
Retailer 10$2,394 USD
Retailer 9$2,421 USD
Retailer 8$2,462 USD
Retailer 6$2,642 USD
Retailer 4$2,681 USD
Retailer 11$2,740 USD
Retailer 2$2,895 USD
Retailer 3$3,017 USD
Retailer 5$3,136 USD
Retailer 7$3,184 USD
Retailer 12$3,753 USD
Wholesale Diamonds Direct$4,036 USD

28 data points across 13 retailers

13 retailers$1,971 USD to $2,394 USD

A
Cheapest Retailer
-
$1,971 USD
A
Retailer 2
-
$2,394 USD
View
Retailer 3
-
$2,421 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$2,462 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$2,642 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$2,681 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$2,740 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$2,895 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$3,017 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$3,136 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$3,184 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$3,753 USD
View
Price last confirmed 8 days ago
Most Expensive
Wholesale Diamonds Direct
271989831 · Oct 26
$4,036 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $1,971 USDSave up to $423 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
$1,971 USD