Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6542139244

Certificate GIA 6542139244

Diamond specifications and retailer prices

From $3,882 NZD
As of November 6, 2026
Save $4,809 NZD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,896 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542139244. Listed at 16 retailers as of November 4, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542139244
Dimensions6.43 × 7.26 × 4.15 mm
L/W Ratio1.13
Top View
6.43 mm7.26 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542139244
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.2%

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: Nov 6
Current: $3,882 NZD|Low: $3,644 NZD|High: $8,971 NZD|Avg: $5,323 NZD|+0.3%
Retailer 1
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 6, 2026
Retailer 1$3,882 NZD
Retailer 3$4,131 NZD
Retailer 9$4,609 NZD
Retailer 4$4,668 NZD
Retailer 13$4,995 NZD
Retailer 11$5,096 NZD
Retailer 12$5,468 NZD
Retailer 6$5,516 NZD
Retailer 10$5,572 NZD
Retailer 5$5,668 NZD
Retailer 2$5,953 NZD
Retailer 7$6,361 NZD
Retailer 8$8,691 NZD

39 data points across 13 retailers

16 retailers$3,882 NZD to $8,691 NZD

A
Cheapest Retailer
-
$3,882 NZD
A
Retailer 2
-
$4,131 NZD
View
Final sale: no returns
B+
Retailer 3
-
$4,609 NZD
View
B+
Retailer 4
-
$4,668 NZD
View
B+
Retailer 5
-
$4,995 NZD
View
B+
Retailer 6
-
$5,096 NZD
View
Retailer 7
-
$5,211 NZD
View
Price last confirmed 43 days ago
B+
Retailer 8
-
$5,468 NZD
View
B+
Retailer 9
-
$5,516 NZD
View
B+
Retailer 10
-
$5,572 NZD
View
Retailer 11
-
$5,668 NZD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$5,953 NZD
View
Retailer 13
-
$6,012 NZD
View
Price last confirmed 44 days ago
B+
Retailer 14
-
$6,361 NZD
View
B
Retailer 15
-
$8,691 NZD
View
Most Expensive
NZ Jewellers
c27b58b6-618b-44f8-bf85-af67dd7fc74f · Sep 25
$10,896 NZD
$6,040 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $3,882 NZDSave up to $4,809 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
1.21ct Heart
$3,882 NZD