CaratHunter
Plans
Round|Natural|IGI

1.25ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 779662572

Shape and cutting style on the report: Round brilliant

Certificate IGI 779662572

Diamond specifications and retailer prices

From $3,355 AUD
$2,305 USD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: $3,355 AUD at The Diamond Guys
View at The Diamond Guys

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 779662572. Listed at 2 retailers as of November 6, 2026. 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

1.25
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 779662572
Dimensions6.84 × 6.88 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.84 mm6.88 mm1.25 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 779662572
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.1%

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 6
Current: $2,717 AUD|Low: $1,971 AUD|High: $5,603 AUD|Avg: $3,630 AUD|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
The Diamond Guys
September 22, 2026
Retailer 7$1,971 AUD
Retailer 3$2,649 AUD
Retailer 1$2,717 AUD
Retailer 5$2,780 AUD
The Diamond Guys$3,355 AUD
Retailer 2$3,410 AUD
Retailer 6$3,614 AUD
Retailer 9$4,097 AUD
Retailer 8$4,101 AUD
Retailer 4$4,410 AUD

63 data points across 10 retailers

2 retailers

Retailer 1
-
$2,780 AUD
Price last confirmed 58 days ago
Most Expensive
B+
The Diamond Guys
1955284445 · Nov 6
$3,355 AUD
$2,305 USD
View
1 more retailer has this diamond

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+
1.25ct Round
$3,355 AUD