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Heart|Natural|GIA

1.33ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3545115877

Certificate GIA 3545115877

Diamond specifications and retailer prices

From $2,563 SGD
As of November 6, 2026
Save $508 SGD (17%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,071 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.33ct natural heart diamond

This 1.33ct natural heart 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545115877. Listed at 5 retailers as of November 5, 2026, with prices from $2,563 to $3,071, a $508 spread on the same certified stone. Blue Nile lists it at $3,071. 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

1.33
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545115877
Dimensions6.97 × 7.64 × 4.53 mm
L/W Ratio1.10
Top View
6.97 mm7.64 mm1.33 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545115877
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,071 SGD|Low: $2,523 SGD|High: $3,819 SGD|Avg: $3,108 SGD|-19.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$2,563 SGD
Retailer 3$2,577 SGD
Retailer 2$2,781 SGD
Retailer 5$2,940 SGD
Blue Nile$3,071 SGD
Retailer 6$3,740 SGD

42 data points across 6 retailers

5 retailers$2,563 SGD to $3,071 SGD

A
Cheapest Retailer
-
$2,563 SGD
A
Retailer 2
-
$2,577 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,781 SGD
View
A
Retailer 4
-
$2,940 SGD
View
Most Expensive
A
Blue Nile
27492901 · Nov 5
$3,071 SGD
$2,396 USD
View
4 more retailers have this diamond
Prices start from $2,563 SGDSave up to $508 SGD

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.

A
1.33ct Heart
$2,563 SGD