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Radiant|Natural|GIA

1.80ct I VS1 Radiant Natural Diamond

VG • I/VS1 • GIA 6203890649

Certificate GIA 6203890649

Diamond specifications and retailer prices

From $15,517 AUD
$10,900 USD
As of November 1, 2026
Save $13,568 AUD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $29,086 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6203890649. Listed at 24 retailers as of October 30, 2026, with prices from $15,517 to $29,086, a $13,568 spread on the same certified stone. NZ Jewellers lists it at $29,086. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.80
Carat
I
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6203890649
Dimensions8.15 × 6.38 × 4.34 mm
L/W Ratio1.28
Top View
8.15 mm6.38 mm1.80 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6203890649
Side View
Table 68.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 68.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $29,086 AUD|Low: $15,335 AUD|High: $29,086 AUD|Avg: $20,932 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$15,517 AUD
Retailer 11$16,723 AUD
Retailer 3$17,452 AUD
Retailer 10$17,597 AUD
Retailer 5$18,465 AUD
Retailer 12$18,615 AUD
Retailer 8$19,000 AUD
Retailer 4$20,915 AUD
Retailer 7$21,990 AUD
Retailer 6$25,639 AUD
Retailer 2$27,255 AUD
NZ Jewellers$29,086 AUD

44 data points across 12 retailers

24 retailers$15,517 AUD to $29,086 AUD

B+
Cheapest Retailer
-
$15,517 AUD
$10,900 USD
B+
Retailer 2
-
$16,192 AUD
$11,374 USD
View
B+
Retailer 3
-
$16,206 AUD
$11,384 USD
View
B
Retailer 4
-
$16,427 AUD
View
B
Retailer 5
-
$16,723 AUD
$11,747 USD
View
Final sale: no returns
B
Retailer 6
-
$17,183 AUD
$12,070 USD
View
B+
Retailer 7
-
$17,452 AUD
$12,259 USD
View
B+
Retailer 8
-
$17,597 AUD
$12,361 USD
View
B+
Retailer 9
-
$18,465 AUD
£10,213 GBP
View
B
Retailer 10
-
$18,615 AUD
$13,076 USD
View
B
Retailer 11
-
$18,626 AUD
$13,084 USD
View
B
Retailer 12
-
$18,905 AUD
$13,280 USD
View
Retailer 13
-
$19,000 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$19,615 AUD
View
B
Retailer 15
-
$19,633 AUD
$13,791 USD
View
B
Retailer 16
-
$19,902 AUD
$13,980 USD
View
B
Retailer 17
-
$19,902 AUD
$13,980 USD
View
B
Retailer 18
-
$20,515 AUD
$14,411 USD
View
B
Retailer 19
-
$20,571 AUD
$14,450 USD
View
B
Retailer 20
-
$20,915 AUD
£11,568 GBP
View
B
Retailer 21
-
$21,990 AUD
€14,711 EUR
View
B
Retailer 22
-
$25,639 AUD
ZAR 290,949 ZAR
View
B
Retailer 23
-
$27,255 AUD
£15,075 GBP
View
Most Expensive
B
NZ Jewellers
d03de529-9509-4502-a036-0bcbd4e6d788 · Oct 30
$29,086 AUD
$20,431 USD
View
23 more retailers have this diamond
Prices start from $15,517 AUDSave up to $13,568 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
$15,517 AUD