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Heart|Natural|GIA

0.90ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6421900050

Certificate GIA 6421900050

Diamond specifications and retailer prices

From $869 NZD
SGD 662 SGD
As of October 31, 2026
Save $1,619 NZD (65%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,488 NZD at Diamond Heaven · As of October 28, 2026
View at Diamond Heaven

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-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 6421900050. Listed at 4 retailers as of October 28, 2026, with prices from $869 to $2,488, a $1,619 spread on the same certified stone. Diamond Heaven lists it at $2,488. 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

0.90
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.81°
Pavilion angle44.61°
OriginNatural
Grading LabGIA
CertificateGIA 6421900050
Dimensions5.87 × 6.79 × 4.00 mm
L/W Ratio1.16
Top View
5.87 mm6.79 mm0.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421900050
Side View
Table 60.0%Crown 38.81°Girdle: MED-VTKPavilion 44.61°Culet: NoneDepth 59.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,488 NZD|Low: $869 NZD|High: $2,814 NZD|Avg: $1,763 NZD|-3.1%
Diamond Heaven
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 3$869 NZD
Retailer 2$1,370 NZD
Retailer 4$1,413 NZD
Retailer 5$1,565 NZD
Retailer 6$1,904 NZD
Retailer 7$2,145 NZD
Diamond Heaven$2,488 NZD

10 data points across 7 retailers

4 retailers$869 NZD to $2,488 NZD

A
Cheapest Retailer
-
$869 NZD
SGD 662 SGD
A
Retailer 2
-
$1,370 NZD
$772 USD
View
A
Retailer 3
-
$1,413 NZD
$796 USD
View
Most Expensive
A
Diamond Heaven
0.900SI2D64505153S · Oct 28
$2,488 NZD
£1,104 GBP
View
3 more retailers have this diamond
Prices start from $869 NZDSave up to $1,619 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
0.90ct Heart
$869 NZD