CaratHunter
Plans
Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2205694149

Certificate GIA 2205694149

Diamond specifications and retailer prices

From $1,728 NZD
As of November 4, 2026
Save $1,898 NZD (52%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,627 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter 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 2205694149. Listed at 5 retailers as of November 2, 2026, with prices from $1,728 to $3,627, a $1,898 spread on the same certified stone. MOH London lists it at $3,627. 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

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2205694149
Dimensions4.68 × 5.59 × 3.39 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeNone
Top View
4.68 mm5.59 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2205694149
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.6%

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 4
Current: $3,627 NZD|Low: $1,728 NZD|High: $4,027 NZD|Avg: $2,693 NZD|-8.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$1,728 NZD
Retailer 4$1,827 NZD
Retailer 2$2,255 NZD
Retailer 3$2,480 NZD
Retailer 6$2,967 NZD
MOH London$3,627 NZD

40 data points across 6 retailers

5 retailers$1,728 NZD to $3,627 NZD

B+
Cheapest Retailer
-
$1,728 NZD
B+
Retailer 2
-
$1,827 NZD
View
B
Retailer 3
-
$2,255 NZD
View
B
Retailer 4
-
$2,480 NZD
View
Most Expensive
B
MOH London
24793B3E5 · Nov 2
$3,627 NZD
£1,583 GBP
View
4 more retailers have this diamond
Prices start from $1,728 NZDSave up to $1,898 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+
0.51ct Heart
$1,728 NZD