Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 3545649149

Certificate GIA 3545649149

Diamond specifications and retailer prices

From $3,086 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $3,501 USD at Cape Diamonds · As of September 30, 2026
View at Cape Diamonds

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545649149. Listed at 3 retailers as of November 6, 2026. 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

1.51
Carat
L
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545649149
Dimensions7.30 × 7.74 × 4.45 mm
L/W Ratio1.06
Top View
7.30 mm7.74 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545649149
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.5%

Caratlytics Score

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B
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Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $3,501 USD|Low: $2,188 USD|High: $3,743 USD|Avg: $2,934 USD|-6.5%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 4$2,188 USD
Retailer 3$2,386 USD
Retailer 6$2,734 USD
Retailer 10$2,829 USD
Retailer 7$2,840 USD
Retailer 5$3,041 USD
Retailer 8$3,045 USD
Retailer 9$3,086 USD
Retailer 2$3,353 USD
Cape Diamonds$3,501 USD

10 data points across 10 retailers

3 retailers

Retailer 1
-
$2,188 USD
Price last confirmed 38 days ago
B
Retailer 2
-
$3,086 USD
View
Most Expensive
Cape Diamonds
cert_3545649149 · Sep 30
$3,501 USD
ZAR 56,554 ZAR
View
Price last confirmed 37 days ago
2 more retailers have this diamond
Prices start from $3,086 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.

B
1.51ct Heart
$3,086 USD