Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6502986341

Certificate GIA 6502986341

Diamond specifications and retailer prices

From $410 USD
As of November 6, 2026
Save $650 USD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,060 USD 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 $410 to $1,060, a $650 spread on the same certified stone. Do Amore Diamonds lists it at $1,060. 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
Color
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

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: $1,060 USD|Low: $338 USD|High: $1,170 USD|Avg: $545 USD|-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$378 USD
Retailer 7$391 USD
Retailer 6$410 USD
Retailer 3$418 USD
Retailer 9$469 USD
Retailer 8$522 USD
Retailer 2$535 USD
Retailer 4$560 USD
Retailer 11$560 USD
Retailer 5$580 USD
Do Amore Diamonds$1,060 USD

42 data points across 11 retailers

10 retailers$410 USD to $1,060 USD

Retailer 1
-
$378 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$410 USD
View
A
Retailer 3
-
$418 USD
View
Retailer 4
-
$469 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$522 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$535 USD
View
Retailer 7
-
$560 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$560 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$580 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
12-100760658646 · Nov 6
$1,060 USD
View
9 more retailers have this diamond
Prices start from $410 USDSave up to $650 USD

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
$410 USD