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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6502986341

Certificate GIA 6502986341

Diamond specifications and retailer prices

From $740 NZD
As of November 6, 2026
Save $1,173 NZD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,912 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion 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 6502986341. Listed at 10 retailers as of November 6, 2026, with prices from $740 to $1,912, a $1,173 spread on the same certified stone. Do Amore Diamonds lists it at $1,912. 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
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6502986341
Dimensions4.52 × 4.42 × 2.97 mm
L/W Ratio1.02
Top View
4.52 mm4.42 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6502986341
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.2%

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: Nov 6
Current: $1,912 NZD|Low: $610 NZD|High: $2,111 NZD|Avg: $981 NZD|-9.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$682 NZD
Retailer 7$705 NZD
Retailer 6$740 NZD
Retailer 3$754 NZD
Retailer 9$846 NZD
Retailer 8$942 NZD
Retailer 2$965 NZD
Retailer 4$1,010 NZD
Retailer 11$1,010 NZD
Retailer 5$1,046 NZD
Do Amore Diamonds$1,912 NZD

41 data points across 11 retailers

10 retailers$740 NZD to $1,912 NZD

Retailer 1
-
$682 NZD
Price last confirmed 12 days ago
A
Retailer 2
-
$740 NZD
View
A
Retailer 3
-
$754 NZD
View
Retailer 4
-
$846 NZD
View
Price last confirmed 10 days ago
Retailer 5
-
$942 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$965 NZD
View
Retailer 7
-
$1,010 NZD
View
Price last confirmed 10 days ago
Retailer 8
-
$1,010 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,046 NZD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
12-100760658646 · Nov 6
$1,912 NZD
$1,060 USD
View
9 more retailers have this diamond
Prices start from $740 NZDSave up to $1,173 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
0.51ct Cushion
$740 NZD