Round|Natural|GIA

1.25ct I I1 Round Natural Diamond

EX • I/I1 • GIA 1418531137

Certificate GIA 1418531137

Diamond specifications and retailer prices

From $2,202 USD
HK$17,200 HKD
As of November 1, 2026
Save $3,936 USD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,312 USD at NZ Jewellers · As of September 28, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 1418531137. Listed at 12 retailers as of November 1, 2026, with a 179% 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1418531137
Dimensions6.89 × 6.85 × 4.32 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Twinning Wisp, Feather, Knot, Cavity, Natural
Top View
6.89 mm6.85 mm1.25 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1418531137
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.9%

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 1
Current: $6,138 USD|Low: $2,176 USD|High: $6,312 USD|Avg: $3,095 USD|-2.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5$2,202 USD
Retailer 12$2,242 USD
Retailer 7$2,660 USD
Retailer 9$2,660 USD
Retailer 3$2,680 USD
Retailer 10$2,762 USD
Retailer 8$3,040 USD
Retailer 11$3,040 USD
Retailer 6$3,140 USD
Retailer 2$3,422 USD
Retailer 4$3,593 USD
NZ Jewellers$6,138 USD

31 data points across 12 retailers

12 retailers$2,202 USD to $6,138 USD

A
Cheapest Retailer
-
$2,202 USD
HK$17,200 HKD
B+
Retailer 2
-
$2,660 USD
View
B+
Retailer 3
-
$2,660 USD
View
B+
Retailer 4
-
$2,762 USD
View
Retailer 5
-
$3,019 USD
View
Price last confirmed 35 days ago
B+
Retailer 6
-
$3,040 USD
View
B+
Retailer 7
-
$3,040 USD
View
B+
Retailer 8
-
$3,140 USD
View
B
Retailer 9
-
$3,422 USD
€3,259 EUR
View
Retailer 10
-
$3,484 USD
View
Price last confirmed 36 days ago
B
Retailer 11
-
$6,138 USD
View
Most Expensive
NZ Jewellers
780dcb6b-dc2f-41b3-876d-0a212d56313f · Sep 28
$6,312 USD
View
Price last confirmed 36 days ago
11 more retailers have this diamond
Prices start from $2,202 USDSave up to $3,936 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
$2,202 USD