Round|Natural|IGI

1.25ct I IF Round Natural Diamond

EX • I/IF • IGI 651485123

Shape and cutting style on the report: Round brilliant

Certificate IGI 651485123

Diamond specifications and retailer prices

From $2,868 USD
As of October 30, 2026
Save $2,488 USD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,580 USD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 651485123. Listed at 14 retailers as of October 30, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 651485123
Dimensions6.92 × 6.88 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.92 mm6.88 mm1.25 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 651485123
Side View
Table 56.0%Crown 35.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,734 USD|Low: $2,464 USD|High: $5,420 USD|Avg: $3,481 USD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$2,868 USD
Retailer 7$2,870 USD
Retailer 2$2,884 USD
Retailer 9$2,957 USD
Retailer 10$3,203 USD
Retailer 4$3,387 USD
Retailer 8$3,708 USD
Retailer 1$3,734 USD
Retailer 5$3,937 USD
Retailer 3$5,356 USD

36 data points across 10 retailers

14 retailers$2,868 USD to $5,356 USD

A
Cheapest Retailer
-
$2,868 USD
A
Retailer 2
-
$2,870 USD
View
A
Retailer 3
-
$2,884 USD
View
A
Retailer 4
-
$2,957 USD
View
Final sale: no returns
Retailer 5
-
$3,087 USD
View
Price last confirmed 97 days ago
Retailer 6
-
$3,203 USD
View
Price last confirmed 39 days ago
Retailer 7
-
$3,203 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$3,387 USD
£2,667 GBP
View
Retailer 9
-
$3,695 USD
View
Price last confirmed 40 days ago
A
Retailer 10
-
$3,708 USD
£2,920 GBP
View
A
Retailer 11
-
$3,734 USD
€3,556 EUR
View
A
Retailer 12
-
$3,937 USD
ZAR 63,597 ZAR
View
A
Retailer 13
-
$5,356 USD
£4,217 GBP
View
Most Expensive
NZ Jewellers
5a395021-560a-4475-87ec-639475c164e0 · Sep 21
$5,580 USD
View
Price last confirmed 40 days ago
13 more retailers have this diamond
Prices start from $2,868 USDSave up to $2,488 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
1.25ct Round
$2,868 USD