CaratHunter
Plans
Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6382477786

Certificate GIA 6382477786

Diamond specifications and retailer prices

From $13,838 NZD
$7,799 USD
As of November 2, 2026
Save $4,527 NZD (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $18,365 NZD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6382477786. Listed at 6 retailers as of November 2, 2026, with prices from $13,838 to $18,365, a $4,527 spread on the same certified stone. 77 Diamonds lists it at $18,365. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6382477786
Dimensions6.93 × 8.14 × 4.56 mm
L/W Ratio1.17
Top View
6.93 mm8.14 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6382477786
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.0%

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: Nov 2
Current: $18,365 NZD|Low: $13,671 NZD|High: $18,484 NZD|Avg: $16,533 NZD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$13,838 NZD
Retailer 2$17,443 NZD
77 Diamonds$18,365 NZD

30 data points across 3 retailers

6 retailers$13,838 NZD to $18,365 NZD

B+
Cheapest Retailer
-
$13,838 NZD
$7,799 USD
B+
Retailer 2
-
$14,496 NZD
$8,170 USD
View
B+
Retailer 3
-
$15,137 NZD
$8,531 USD
View
B
Retailer 4
-
$17,443 NZD
$9,831 USD
View
Retailer 5
-
$17,443 NZD
$9,831 USD
View
Price last confirmed 19 days ago
Most Expensive
B
77 Diamonds
HSZBDP8PEFC · Nov 2
$18,365 NZD
£8,150 GBP
View
5 more retailers have this diamond
Prices start from $13,838 NZDSave up to $4,527 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
$13,838 NZD