CaratHunter
Plans
Round|Natural|GIA

1.57ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6505903416

Certificate GIA 6505903416

Diamond specifications and retailer prices

From £3,023 GBP
$4,050 USD
As of October 30, 2026
Save £104 GBP (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,127 GBP at Jared · As of October 30, 2026
View at Jared

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6505903416. Listed at 3 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6505903416
Dimensions7.43 × 7.46 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.43 mm7.46 mm1.57 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6505903416
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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 30
Current: £3,127 GBP|Low: £3,023 GBP|High: £3,463 GBP|Avg: £3,169 GBP|-0.7%
Jared
Retailer 2
Retailer 3
June 23, 2026
Retailer 2£3,023 GBP
Retailer 3£3,023 GBP
Jared£3,127 GBP

8 data points across 3 retailers

3 retailers£3,023 GBP to £3,127 GBP

B+
Cheapest Retailer
-
£3,023 GBP
$4,050 USD
B+
Retailer 2
-
£3,023 GBP
$4,050 USD
View
Most Expensive
B
Jared
152926087 · Oct 30
£3,127 GBP
$4,190 USD
View
2 more retailers have this diamond
Prices start from £3,023 GBPSave up to £104 GBP

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+
1.57ct Round
£3,023 GBP