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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 $4,066 USD
As of October 28, 2026
Save $4,881 USD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,947 USD 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 $4,066 to $8,947, a $4,881 spread on the same certified stone. Queensmith lists it at $8,947. 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
Color
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 28
Current: $8,947 USD|Low: $3,944 USD|High: $8,979 USD|Avg: $5,551 USD|+2.1%
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 29, 2026
Retailer 5$4,066 USD
Retailer 13$4,226 USD
Retailer 14$4,302 USD
Retailer 6$4,378 USD
Retailer 4$4,405 USD
Retailer 12$4,661 USD
Retailer 8$4,842 USD
Retailer 7$4,933 USD
Retailer 2$5,120 USD
Retailer 3$5,187 USD
Retailer 10$5,814 USD
Retailer 11$6,265 USD
Retailer 9$8,238 USD
Queensmith$8,947 USD

34 data points across 14 retailers

19 retailers$4,066 USD to $8,947 USD

A
Cheapest Retailer
-
$4,066 USD
A
Retailer 2
-
$4,226 USD
View
A
Retailer 3
-
$4,302 USD
View
Final sale: no returns
A
Retailer 4
-
$4,378 USD
View
A
Retailer 5
-
$4,405 USD
View
A
Retailer 6
-
$4,627 USD
View
A
Retailer 7
-
$4,661 USD
View
A
Retailer 8
-
$4,842 USD
£3,813 GBP
View
A
Retailer 9
-
$4,933 USD
View
A
Retailer 10
-
$5,030 USD
View
A
Retailer 11
-
$5,030 USD
View
A
Retailer 12
-
$5,120 USD
£4,032 GBP
View
A
Retailer 13
-
$5,187 USD
A$7,980 AUD
View
Price last confirmed 20 days ago
A
Retailer 14
-
$5,200 USD
View
B+
Retailer 15
-
$5,679 USD
View
Price last confirmed 14 days ago
A
Retailer 16
-
$5,814 USD
€5,537 EUR
View
B+
Retailer 17
-
$6,265 USD
ZAR 101,217 ZAR
View
B+
Retailer 18
-
$8,238 USD
£6,487 GBP
View
Most Expensive
B
Queensmith
2436211625 · Oct 28
$8,947 USD
£7,045 GBP
View
18 more retailers have this diamond
Prices start from $4,066 USDSave up to $4,881 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.

A
1.51ct Heart
$4,066 USD