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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2436211625

Certificate GIA 2436211625

Diamond specifications and retailer prices

From $5,198 SGD
$4,066 USD
As of October 30, 2026
Save $6,240 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,438 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2436211625. Listed at 19 retailers as of October 28, 2026, with prices from $5,198 to $11,438, a $6,240 spread on the same certified stone. Queensmith lists it at $11,438. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.11°
Pavilion angle31.22°
OriginNatural
Grading LabGIA
CertificateGIA 2436211625
Dimensions6.51 × 6.17 × 4.30 mm
L/W Ratio1.06
Top View
6.51 mm6.17 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436211625
Side View
Table 60.0%Crown 38.11°Girdle: ThickPavilion 31.22°Culet: NoneDepth 69.7%

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: Oct 30
Current: $11,438 SGD|Low: $5,042 SGD|High: $11,479 SGD|Avg: $7,068 SGD|+2.5%
Queensmith
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
October 30, 2026
Retailer 5$5,198 SGD
Retailer 13$5,403 SGD
Retailer 14$5,500 SGD
Retailer 6$5,597 SGD
Retailer 4$5,631 SGD
Retailer 12$5,959 SGD
Retailer 2$6,173 SGD
Retailer 8$6,306 SGD
Retailer 7$6,565 SGD
Retailer 3$6,631 SGD
Retailer 10$7,432 SGD
Retailer 11$8,010 SGD
Retailer 9$10,532 SGD
Queensmith$11,438 SGD

35 data points across 14 retailers

19 retailers$5,198 SGD to $11,438 SGD

A
Cheapest Retailer
-
$5,198 SGD
$4,066 USD
A
Retailer 2
-
$5,403 SGD
$4,226 USD
View
A
Retailer 3
-
$5,500 SGD
$4,302 USD
View
Final sale: no returns
A
Retailer 4
-
$5,597 SGD
$4,378 USD
View
A
Retailer 5
-
$5,631 SGD
$4,405 USD
View
A
Retailer 6
-
$5,915 SGD
$4,627 USD
View
A
Retailer 7
-
$5,959 SGD
$4,661 USD
View
A
Retailer 8
-
$6,173 SGD
£3,802 GBP
View
A
Retailer 9
-
$6,306 SGD
$4,933 USD
View
A
Retailer 10
-
$6,430 SGD
$5,030 USD
View
A
Retailer 11
-
$6,430 SGD
$5,030 USD
View
A
Retailer 12
-
$6,565 SGD
£4,044 GBP
View
Retailer 13
-
$6,631 SGD
A$7,980 AUD
View
Price last confirmed 20 days ago
A
Retailer 14
-
$6,648 SGD
$5,200 USD
View
Retailer 15
-
$7,260 SGD
$5,679 USD
View
Price last confirmed 15 days ago
A
Retailer 16
-
$7,432 SGD
€5,537 EUR
View
B+
Retailer 17
-
$8,010 SGD
ZAR 101,217 ZAR
View
B+
Retailer 18
-
$10,532 SGD
£6,487 GBP
View
Most Expensive
B
Queensmith
2436211625 · Oct 28
$11,438 SGD
£7,045 GBP
View
18 more retailers have this diamond
Prices start from $5,198 SGDSave up to $6,240 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
1.51ct Heart
$5,198 SGD