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Radiant|Natural|GIA

1.80ct I VS1 Radiant Natural Diamond

ID • I/VS1 • GIA 09

Certificate GIA 09

Diamond specifications and retailer prices

From $13,812 SGD
$10,804 USD
As of October 31, 2026
Save $3,248 SGD (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $17,060 SGD at Blue Nile · As of October 31, 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 I colour (near-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. Listed at 3 retailers as of October 31, 2026, with prices from $13,812 to $17,060, a $3,248 spread on the same certified stone. Blue Nile lists it at $17,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
I
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 09
Dimensions8.15 × 6.38 × 4.35 mm
L/W Ratio1.28
Top View
8.15 mm6.38 mm1.80 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 09
Side View
Table 68.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.1%

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 31
Current: $17,060 SGD|Low: $13,639 SGD|High: $17,458 SGD|Avg: $15,326 SGD|-2.3%
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 2$13,812 SGD
Retailer 3$14,984 SGD
Blue Nile$17,060 SGD

6 data points across 3 retailers

3 retailers$13,812 SGD to $17,060 SGD

B+
Cheapest Retailer
-
$13,812 SGD
$10,804 USD
B
Retailer 2
-
$14,984 SGD
$11,721 USD
View
Most Expensive
B
Blue Nile
9078234 · Oct 31
$17,060 SGD
$13,345 USD
View
2 more retailers have this diamond
Prices start from $13,812 SGDSave up to $3,248 SGD

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
$13,812 SGD