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Heart|Natural|GIA

0.78ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 1549275139

Certificate GIA 1549275139

Diamond specifications and retailer prices

From $818 SGD
HK$5,000 HKD
As of October 30, 2026
Save $792 SGD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,600 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.78ct natural heart diamond

This 0.78ct natural heart sits in the just-under-one-carat band, graded G 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 1549275139. Listed at 18 retailers as of October 30, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.78
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549275139
Dimensions5.51 × 6.50 × 3.84 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
5.51 mm6.50 mm0.78 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549275139
Side View
Table 59.0%CrownGirdle: THN-THKPavilion 41.6°Culet: NoneDepth 59.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,607 SGD|Low: $818 SGD|High: $2,068 SGD|Avg: $1,305 SGD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 15$818 SGD
Retailer 2$992 SGD
Retailer 5$1,061 SGD
Retailer 13$1,071 SGD
Retailer 11$1,076 SGD
Retailer 14$1,136 SGD
Retailer 6$1,140 SGD
Retailer 12$1,285 SGD
Retailer 10$1,293 SGD
Retailer 7$1,308 SGD
Retailer 9$1,313 SGD
Retailer 3$1,361 SGD
Retailer 1$1,607 SGD
Retailer 8$1,678 SGD
Retailer 16$1,681 SGD
Retailer 4$1,982 SGD

28 data points across 16 retailers

18 retailers$818 SGD to $1,610 SGD

A
Cheapest Retailer
-
$818 SGD
HK$5,000 HKD
A
Retailer 2
-
$992 SGD
$776 USD
View
Final sale: no returns
A
Retailer 3
-
$1,061 SGD
$830 USD
View
A
Retailer 4
-
$1,071 SGD
$838 USD
View
Retailer 5
-
$1,076 SGD
€801 EUR
View
Price last confirmed 3 days ago
A
Retailer 6
-
$1,136 SGD
$889 USD
View
Retailer 7
-
$1,140 SGD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$1,285 SGD
$1,005 USD
View
A
Retailer 9
-
$1,293 SGD
£797 GBP
View
A
Retailer 10
-
$1,308 SGD
View
A
Retailer 11
-
$1,313 SGD
£809 GBP
View
A
Retailer 12
-
$1,361 SGD
$1,065 USD
View
B+
Retailer 13
-
$1,607 SGD
ZAR 20,310 ZAR
View
B+
Retailer 14
-
$1,610 SGD
A$1,938 AUD
View
Retailer 15
-
$1,678 SGD
A$2,020 AUD
View
Price last confirmed 28 days ago
Retailer 16
-
$1,681 SGD
$1,315 USD
View
Price last confirmed 9 days ago
Retailer 17
-
$1,982 SGD
£1,221 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
fe661871-26f7-47b4-9d4a-36a9581c5b83 · Sep 25
$3,600 SGD
$2,816 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $818 SGDSave up to $792 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
0.78ct Heart
$818 SGD