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Heart|Natural|GIA

1.50ct K SI2 Heart Natural Diamond

ID • K/SI2 • GIA 7553188889

Certificate GIA 7553188889

Diamond specifications and retailer prices

From $2,986 AUD
As of November 6, 2026
Save $1,446 AUD (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,432 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553188889. Listed at 6 retailers as of November 6, 2026, with prices from $2,986 to $4,432, a $1,446 spread on the same certified stone. 77 Diamonds lists it at $4,432. 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

1.50
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7553188889
Dimensions7.72 × 7.11 × 4.49 mm
L/W Ratio1.09
Culet sizeVery Small
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.72 mm7.11 mm1.50 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7553188889
Side View
Table 52.0%CrownGirdle: STK-VTKPavilionCulet: Very SmallDepth 58.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,432 AUD|Low: $2,796 AUD|High: $4,482 AUD|Avg: $3,392 AUD|+1.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$2,796 AUD
Retailer 3$2,986 AUD
Retailer 4$3,017 AUD
Retailer 6$3,030 AUD
Retailer 5$3,161 AUD
Retailer 2$4,325 AUD
77 Diamonds$4,432 AUD

41 data points across 7 retailers

6 retailers$2,986 AUD to $4,432 AUD

A
Cheapest Retailer
-
$2,986 AUD
A
Retailer 2
-
$3,017 AUD
View
A
Retailer 3
-
$3,030 AUD
View
A
Retailer 4
-
$3,161 AUD
View
B+
Retailer 5
-
$4,325 AUD
View
Most Expensive
B+
77 Diamonds
HSMBHCCQYGKQ · Nov 6
$4,432 AUD
£2,398 GBP
View
5 more retailers have this diamond
Prices start from $2,986 AUDSave up to $1,446 AUD

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
1.50ct Heart
$2,986 AUD