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Heart|Natural|GIA

1.57ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6237707801

Certificate GIA 6237707801

Diamond specifications and retailer prices

From $10,170 NZD
As of November 5, 2026
Save $1,050 NZD (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $11,220 NZD at Jared · As of November 6, 2026
View at Jared

About this 1.57ct natural heart diamond

This 1.57ct natural heart 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 stated by the retailer rather than the lab and certified by GIA 6237707801. Listed at 4 retailers as of November 5, 2026, with a relatively tight 10% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6237707801
Dimensions7.00 × 7.83 × 4.60 mm
L/W Ratio1.12
Top View
7.00 mm7.83 mm1.57 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6237707801
Side View
Table 58.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $11,220 NZD|Low: $9,921 NZD|High: $12,074 NZD|Avg: $11,180 NZD|+9.5%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 26, 2026
Retailer 2$10,170 NZD
Retailer 3$10,859 NZD
Retailer 4$10,859 NZD
Jared$11,220 NZD
Retailer 5$12,074 NZD

9 data points across 5 retailers

4 retailers$10,170 NZD to $11,220 NZD

B
Cheapest Retailer
-
$10,170 NZD
B
Retailer 2
-
$10,859 NZD
View
B
Retailer 3
-
$10,859 NZD
View
Most Expensive
B
Jared
156685562 · Nov 6
$11,220 NZD
$6,220 USD
View
3 more retailers have this diamond
Prices start from $10,170 NZDSave up to $1,050 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 Heart
$10,170 NZD