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Round|Natural|GIA

1.57ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6545358708

Certificate GIA 6545358708

Diamond specifications and retailer prices

From $10,903 NZD
$6,145 USD
As of October 31, 2026
Save $189 NZD (2%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $11,092 NZD at GemTrove · As of November 2, 2026
View at GemTrove

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545358708. Listed at 2 retailers as of October 31, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.57
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545358708
Dimensions7.38 × 7.43 × 4.59 mm
L/W Ratio1.01
Top View
7.38 mm7.43 mm1.57 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545358708
Side View
Table 61.0%CrownGirdle: UNDPavilionCulet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $11,092 NZD|Low: $6,813 NZD|High: $11,870 NZD|Avg: $9,299 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 26, 2026
Retailer 5$6,813 NZD
Retailer 8$8,424 NZD
Retailer 3$9,187 NZD
Retailer 7$9,417 NZD
Retailer 6$9,580 NZD
Retailer 2$10,903 NZD
GemTrove$11,092 NZD
Retailer 4$11,868 NZD

30 data points across 8 retailers

2 retailers$10,903 NZD to $11,092 NZD

B
Cheapest Retailer
-
$10,903 NZD
$6,145 USD
Most Expensive
B
GemTrove
GT-N-01367039-98 · Nov 2
$11,092 NZD
A$9,618 AUD
View
1 more retailer has this diamond
Prices start from $10,903 NZDSave up to $189 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
1.57ct Round
$10,903 NZD