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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 $7,214 NZD
$4,066 USD
As of October 30, 2026
Save $8,661 NZD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,875 NZD 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 $7,214 to $15,875, a $8,661 spread on the same certified stone. Queensmith lists it at $15,875. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $15,875 NZD|Low: $6,998 NZD|High: $15,931 NZD|Avg: $9,705 NZD|+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
November 1, 2026
Retailer 5$7,214 NZD
Retailer 13$7,498 NZD
Retailer 14$7,633 NZD
Retailer 6$7,768 NZD
Retailer 4$7,816 NZD
Retailer 12$8,270 NZD
Retailer 2$8,542 NZD
Retailer 11$8,753 NZD
Retailer 8$9,113 NZD
Retailer 3$9,203 NZD
Retailer 10$10,330 NZD
Retailer 9$11,221 NZD
Retailer 7$14,541 NZD
Queensmith$15,875 NZD

34 data points across 14 retailers

19 retailers$7,214 NZD to $15,875 NZD

A
Cheapest Retailer
-
$7,214 NZD
$4,066 USD
A
Retailer 2
-
$7,498 NZD
$4,226 USD
View
A
Retailer 3
-
$7,633 NZD
$4,302 USD
View
Final sale: no returns
A
Retailer 4
-
$7,768 NZD
$4,378 USD
View
A
Retailer 5
-
$7,816 NZD
$4,405 USD
View
A
Retailer 6
-
$8,210 NZD
$4,627 USD
View
A
Retailer 7
-
$8,270 NZD
$4,661 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$8,542 NZD
£3,791 GBP
View
A
Retailer 9
-
$8,753 NZD
$4,933 USD
View
A
Retailer 10
-
$8,925 NZD
$5,030 USD
View
A
Retailer 11
-
$8,925 NZD
$5,030 USD
View
A
Retailer 12
-
$9,113 NZD
£4,044 GBP
View
Retailer 13
-
$9,203 NZD
A$7,980 AUD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$9,226 NZD
$5,200 USD
View
Retailer 15
-
$10,076 NZD
$5,679 USD
View
Price last confirmed 17 days ago
A
Retailer 16
-
$10,330 NZD
€5,545 EUR
View
B+
Retailer 17
-
$11,221 NZD
ZAR 102,172 ZAR
View
B+
Retailer 18
-
$14,541 NZD
£6,453 GBP
View
Most Expensive
B
Queensmith
2436211625 · Oct 28
$15,875 NZD
£7,045 GBP
View
18 more retailers have this diamond
Prices start from $7,214 NZDSave up to $8,661 NZD

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
$7,214 NZD