CaratHunter
Plans
Heart|Natural|GIA

0.91ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 1538050825

Certificate GIA 1538050825

Diamond specifications and retailer prices

From $4,438 NZD
$2,497 USD
As of November 1, 2026
Save $5,920 NZD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,358 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-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 1538050825. Listed at 12 retailers as of October 30, 2026, with prices from $4,438 to $10,358, a $5,920 spread on the same certified stone. NZ Jewellers lists it at $10,358. 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

0.91
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 1538050825
Dimensions6.04 × 6.76 × 3.83 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.04 mm6.76 mm0.91 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538050825
Side View
Table 60.0%CrownGirdle: MED-VTKPavilion 40°Culet: 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: Nov 1
Current: $4,919 NZD|Low: $4,191 NZD|High: $8,785 NZD|Avg: $5,717 NZD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$4,573 NZD
Retailer 7$4,861 NZD
Retailer 1$4,919 NZD
Retailer 8$4,955 NZD
Retailer 6$5,145 NZD
Retailer 5$5,551 NZD
Retailer 9$5,718 NZD
Retailer 3$7,308 NZD
Retailer 2$8,681 NZD

43 data points across 9 retailers

12 retailers$4,438 NZD to $10,358 NZD

B+
Cheapest Retailer
-
$4,438 NZD
$2,497 USD
B+
Retailer 2
-
$4,573 NZD
$2,573 USD
View
Final sale: no returns
B
Retailer 3
-
$4,861 NZD
$2,735 USD
View
B+
Retailer 4
-
$4,919 NZD
£2,179 GBP
View
B
Retailer 5
-
$4,955 NZD
$2,788 USD
View
B
Retailer 6
-
$5,145 NZD
$2,895 USD
View
B
Retailer 7
-
$5,207 NZD
$2,929 USD
View
Retailer 8
-
$5,551 NZD
A$4,805 AUD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$5,718 NZD
$3,217 USD
View
B
Retailer 10
-
$7,308 NZD
ZAR 66,430 ZAR
View
B
Retailer 11
-
$8,681 NZD
£3,846 GBP
View
Most Expensive
B
NZ Jewellers
488aa830-c48c-422b-bef7-62e37ef3cff5 · Oct 30
$10,358 NZD
$5,828 USD
View
11 more retailers have this diamond
Prices start from $4,438 NZDSave up to $5,920 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+
0.91ct Heart
$4,438 NZD