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Radiant|Natural|GIA

1.80ct D VS1 Radiant Natural Diamond

EX • D/VS1 • GIA 6555135669

Certificate GIA 6555135669

Diamond specifications and retailer prices

From $16,951 USD
£13,348 GBP
As of October 30, 2026
Save $3,299 USD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $20,250 USD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555135669. Listed at 3 retailers as of October 29, 2026, with prices from $16,951 to $20,250, a $3,299 spread on the same certified stone. Blue Nile lists it at $20,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
D
Color
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle57.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555135669
Dimensions8.94 × 6.11 × 4.11 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.94 mm6.11 mm1.80 ctD / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555135669
Side View
Table 67.0%Crown 45.4°Girdle: MED-STKPavilion 57.6°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $20,250 USD|Low: $16,883 USD|High: $21,490 USD|Avg: $19,079 USD|-5.8%
Blue Nile
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$16,951 USD
Retailer 2$18,042 USD
Blue Nile$20,250 USD

40 data points across 3 retailers

3 retailers$16,951 USD to $20,250 USD

B+
Cheapest Retailer
-
$16,951 USD
£13,348 GBP
B+
Retailer 2
-
$18,042 USD
View
Most Expensive
B
Blue Nile
29205187 · Oct 29
$20,250 USD
View
2 more retailers have this diamond
Prices start from $16,951 USDSave up to $3,299 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.

B+
1.80ct Radiant
$16,951 USD