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Radiant|Natural|GIA

1.80ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 7552009493

Certificate GIA 7552009493

Diamond specifications and retailer prices

From $15,725 AUD
CA$15,341 CAD
As of October 30, 2026
Save $3,381 AUD (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $19,106 AUD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.8ct natural radiant diamond

This 1.8ct natural radiant sits in the one-and-a-half to two 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 7552009493. Listed at 2 retailers as of October 30, 2026, with prices from $15,725 to $19,106, a $3,381 spread on the same certified stone. 77 Diamonds lists it at $19,106. 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

1.80
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7552009493
Dimensions8.14 × 6.34 × 4.34 mm
L/W Ratio1.28
Top View
8.14 mm6.34 mm1.80 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7552009493
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $19,106 AUD|Low: $14,448 AUD|High: $19,362 AUD|Avg: $16,456 AUD|+1.0%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$14,448 AUD
Retailer 2$15,725 AUD
77 Diamonds$19,106 AUD

35 data points across 3 retailers

2 retailers$15,725 AUD to $19,106 AUD

B+
Cheapest Retailer
-
$15,725 AUD
CA$15,341 CAD
Most Expensive
B
77 Diamonds
RADMBJMXYYGG6 · Nov 1
$19,106 AUD
£10,567 GBP
View
1 more retailer has this diamond
Prices start from $15,725 AUDSave up to $3,381 AUD

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+
1.80ct Radiant
$15,725 AUD