Round|Natural|GIA

1.25ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1565352270

Certificate GIA 1565352270

Diamond specifications and retailer prices

From $4,218 USD
As of November 1, 2026
Save $3,766 USD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,473 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565352270. Listed at 13 retailers as of November 1, 2026, with a 89% 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

1.25
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565352270
Dimensions6.82 × 6.86 × 4.28 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Cloud, Needle
Top View
6.82 mm6.86 mm1.25 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565352270
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $5,000 USD|Low: $4,218 USD|High: $8,026 USD|Avg: $5,276 USD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 11$4,218 USD
Retailer 8$4,330 USD
Retailer 10$4,496 USD
Retailer 9$4,662 USD
Retailer 3$4,670 USD
Retailer 2$4,717 USD
Retailer 4$4,870 USD
Retailer 12$4,995 USD
Retailer 1$5,000 USD
Retailer 5$5,647 USD
Retailer 7$7,326 USD
Retailer 6$7,984 USD

19 data points across 12 retailers

13 retailers$4,218 USD to $7,984 USD

A
Cheapest Retailer
-
$4,218 USD
B+
Retailer 2
-
$4,330 USD
View
B+
Retailer 3
-
$4,496 USD
View
B+
Retailer 4
-
$4,662 USD
View
Retailer 5
-
$4,670 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$4,863 USD
View
Price last confirmed 41 days ago
Retailer 7
-
$4,870 USD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$4,995 USD
View
B+
Retailer 9
-
$5,000 USD
View
B+
Retailer 10
-
$5,647 USD
View
Retailer 11
-
$7,326 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$7,984 USD
View
Most Expensive
NZ Jewellers
f736fc90-8d80-4a07-95cf-aa6564149729 · Sep 28
$8,473 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from $4,218 USDSave up to $3,766 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
$4,218 USD