Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 11955784

Certificate GIA 11955784

Diamond specifications and retailer prices

From $13,206 NZD
$7,430 USD
As of October 31, 2026
Save $9,675 NZD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $22,881 NZD at MOH London · As of November 2, 2026
View at MOH London

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 11955784. Listed at 12 retailers as of October 31, 2026, with prices from $13,206 to $22,881, a $9,675 spread on the same certified stone. MOH London lists it at $22,881. 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
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11955784
Dimensions7.19 × 7.82 × 4.42 mm
L/W Ratio1.09
Culet sizeNone
Top View
7.19 mm7.82 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 11955784
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 56.6%

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 31
Current: $22,881 NZD|Low: $13,206 NZD|High: $23,156 NZD|Avg: $16,950 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 6$13,206 NZD
Retailer 2$15,317 NZD
Retailer 5$15,338 NZD
Retailer 4$15,472 NZD
Retailer 3$17,934 NZD
Retailer 7$18,079 NZD
MOH London$22,881 NZD

44 data points across 7 retailers

12 retailers$13,206 NZD to $22,881 NZD

B+
Cheapest Retailer
-
$13,206 NZD
$7,430 USD
B+
Retailer 2
-
$13,476 NZD
CA$10,531 CAD
View
B+
Retailer 3
-
$15,317 NZD
£6,786 GBP
View
B
Retailer 4
-
$15,338 NZD
$8,630 USD
View
Retailer 5
-
$15,472 NZD
A$13,393 AUD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$15,759 NZD
$8,867 USD
View
B
Retailer 7
-
$16,316 NZD
$9,180 USD
View
B
Retailer 8
-
$16,316 NZD
$9,180 USD
View
B
Retailer 9
-
$16,867 NZD
$9,490 USD
View
B
Retailer 10
-
$17,934 NZD
€9,610 EUR
View
Retailer 11
-
$18,079 NZD
$10,172 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
071D4CC6A · Nov 2
$22,881 NZD
£10,137 GBP
View
11 more retailers have this diamond
Prices start from $13,206 NZDSave up to $9,675 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
$13,206 NZD