Radiant|Natural|GIA

1.80ct I VS1 Radiant Natural Diamond

VG • I/VS1 • GIA 6203890649

Certificate GIA 6203890649

Diamond specifications and retailer prices

From $10,900 USD
As of October 28, 2026
Save $9,531 USD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $20,431 USD 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 28, 2026, with prices from $10,900 to $20,431, a $9,531 spread on the same certified stone. NZ Jewellers lists it at $20,431. 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
Color
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: Oct 28
Current: $20,431 USD|Low: $10,772 USD|High: $20,431 USD|Avg: $14,558 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10$10,900 USD
Retailer 12$11,747 USD
Retailer 3$12,259 USD
Retailer 11$12,361 USD
Retailer 2$12,970 USD
Retailer 13$13,076 USD
Retailer 5$13,280 USD
Retailer 9$13,346 USD
Retailer 4$14,691 USD
Retailer 6$15,447 USD
Retailer 8$17,914 USD
Retailer 7$19,248 USD
NZ Jewellers$20,431 USD

45 data points across 13 retailers

24 retailers$10,900 USD to $20,431 USD

B+
Cheapest Retailer
-
$10,900 USD
B+
Retailer 2
-
$11,374 USD
View
B+
Retailer 3
-
$11,384 USD
View
B
Retailer 4
-
$11,539 USD
A$17,753 AUD
View
B
Retailer 5
-
$11,747 USD
View
Final sale: no returns
B
Retailer 6
-
$12,070 USD
View
B+
Retailer 7
-
$12,259 USD
View
B+
Retailer 8
-
$12,361 USD
View
B+
Retailer 9
-
$12,970 USD
£10,213 GBP
View
B
Retailer 10
-
$13,076 USD
View
B
Retailer 11
-
$13,084 USD
View
B
Retailer 12
-
$13,280 USD
View
Retailer 13
-
$13,346 USD
A$20,533 AUD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$13,779 USD
A$21,198 AUD
View
B
Retailer 15
-
$13,791 USD
View
B
Retailer 16
-
$13,980 USD
View
B
Retailer 17
-
$13,980 USD
View
B
Retailer 18
-
$14,411 USD
View
B
Retailer 19
-
$14,450 USD
View
B
Retailer 20
-
$14,691 USD
£11,568 GBP
View
B
Retailer 21
-
$15,447 USD
€14,711 EUR
View
B
Retailer 22
-
$17,914 USD
ZAR 289,403 ZAR
View
B
Retailer 23
-
$19,248 USD
£15,156 GBP
View
Most Expensive
B
NZ Jewellers
d03de529-9509-4502-a036-0bcbd4e6d788 · Oct 30
$20,431 USD
View
23 more retailers have this diamond
Prices start from $10,900 USDSave up to $9,531 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
$10,900 USD