CaratHunter
Plans
Radiant|Natural|GIA

1.25ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 0152

Certificate GIA 0152

Diamond specifications and retailer prices

From $4,610 NZD
$2,594 USD
As of October 31, 2026
Save $338 NZD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,948 NZD at B2C Jewels · As of November 2, 2026
View at B2C Jewels

About this 1.25ct natural radiant diamond

This 1.25ct natural radiant 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 standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of October 31, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 0152
Dimensions6.20 × 5.19 mm
L/W Ratio1.19
Top View
6.20 mm5.19 mm1.25 ctI / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 0152
Side View
Table 71.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 78.8%

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: Oct 31
Current: $4,948 NZD|Low: $4,610 NZD|High: $4,948 NZD|Avg: $4,731 NZD|+1.5%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2$4,610 NZD
B2C Jewels$4,948 NZD

3 data points across 2 retailers

2 retailers$4,610 NZD to $4,948 NZD

B+
Cheapest Retailer
-
$4,610 NZD
$2,594 USD
Most Expensive
B+
B2C Jewels
19428235 · Nov 2
$4,948 NZD
$2,784 USD
View
1 more retailer has this diamond
Prices start from $4,610 NZDSave up to $338 NZD

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 Radiant
$4,610 NZD