Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6471026814

Certificate GIA 6471026814

Diamond specifications and retailer prices

From $10,348 NZD
$5,832 USD
As of October 30, 2026
Save $11,558 NZD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $21,906 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded D 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 6471026814. Listed at 18 retailers as of October 30, 2026, with prices from $10,348 to $21,906, a $11,558 spread on the same certified stone. NZ Jewellers lists it at $21,906. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6471026814
Dimensions7.44 × 7.56 × 3.74 mm
L/W Ratio1.02
Top View
7.44 mm7.56 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6471026814
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 49.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $21,906 NZD|Low: $10,348 NZD|High: $21,906 NZD|Avg: $13,911 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4$10,348 NZD
Retailer 10$10,953 NZD
Retailer 12$11,867 NZD
Retailer 11$12,047 NZD
Retailer 3$12,069 NZD
Retailer 7$12,247 NZD
Retailer 2$12,255 NZD
Retailer 5$12,845 NZD
Retailer 13$13,690 NZD
Retailer 9$14,314 NZD
Retailer 8$16,092 NZD
Retailer 6$18,252 NZD
NZ Jewellers$21,906 NZD

42 data points across 13 retailers

18 retailers$10,348 NZD to $21,906 NZD

B+
Cheapest Retailer
-
$10,348 NZD
$5,832 USD
B+
Retailer 2
-
$10,458 NZD
$5,894 USD
View
B+
Retailer 3
-
$10,953 NZD
$6,173 USD
View
Retailer 4
-
$10,953 NZD
$6,173 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$11,010 NZD
$6,205 USD
View
B+
Retailer 6
-
$11,867 NZD
$6,688 USD
View
B+
Retailer 7
-
$12,047 NZD
$6,790 USD
View
B+
Retailer 8
-
$12,069 NZD
$6,802 USD
View
B+
Retailer 9
-
$12,247 NZD
£5,435 GBP
View
B+
Retailer 10
-
$12,255 NZD
£5,438 GBP
View
Retailer 11
-
$12,845 NZD
A$11,137 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$13,690 NZD
$7,716 USD
View
Retailer 13
-
$13,690 NZD
$7,716 USD
View
Price last confirmed 23 days ago
B
Retailer 14
-
$14,314 NZD
€7,683 EUR
View
Retailer 15
-
$14,434 NZD
$8,135 USD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$16,092 NZD
ZAR 146,521 ZAR
View
B
Retailer 17
-
$18,252 NZD
£8,100 GBP
View
Most Expensive
B
NZ Jewellers
75af5fb7-0f00-4687-9234-f981cbecc60e · Oct 30
$21,906 NZD
$12,346 USD
View
17 more retailers have this diamond
Prices start from $10,348 NZDSave up to $11,558 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.

B+
1.51ct Heart
$10,348 NZD