Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 2534856644

Certificate GIA 2534856644

Diamond specifications and retailer prices

From $2,432 USD
As of November 6, 2026
Save $2,909 USD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,115 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2534856644. Listed at 23 retailers as of November 2, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2534856644
Dimensions7.24 × 5.39 × 3.65 mm
L/W Ratio1.34
Top View
7.24 mm5.39 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2534856644
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,115 USD|Low: $2,432 USD|High: $6,115 USD|Avg: $3,766 USD
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 6$2,432 USD
Retailer 8$2,527 USD
Retailer 14$2,877 USD
Retailer 15$2,893 USD
Retailer 3$2,917 USD
Retailer 9$3,066 USD
Retailer 2$3,270 USD
Retailer 10$3,304 USD
Retailer 11$3,382 USD
Retailer 4$3,400 USD
Retailer 12$3,680 USD
Retailer 7$3,717 USD
Retailer 13$3,858 USD
Retailer 5$5,341 USD
Queensmith$6,115 USD

23 data points across 15 retailers

23 retailers$2,432 USD to $5,341 USD

A
Cheapest Retailer
-
$2,432 USD
A
Retailer 2
-
$2,527 USD
View
B+
Retailer 3
-
$2,877 USD
View
B+
Retailer 4
-
$2,893 USD
View
B+
Retailer 5
-
$2,917 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,029 USD
View
B+
Retailer 7
-
$3,030 USD
View
B+
Retailer 8
-
$3,066 USD
View
B
Retailer 9
-
$3,222 USD
View
Retailer 10
-
$3,225 USD
View
Price last confirmed 22 days ago
Retailer 11
-
$3,225 USD
View
Price last confirmed 20 days ago
B+
Retailer 12
-
$3,270 USD
View
B+
Retailer 13
-
$3,304 USD
View
Retailer 14
-
$3,349 USD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$3,382 USD
View
B+
Retailer 16
-
$3,400 USD
View
Retailer 17
-
$3,475 USD
View
Price last confirmed 34 days ago
B+
Retailer 18
-
$3,680 USD
View
Retailer 19
-
$3,722 USD
View
Price last confirmed 19 days ago
B+
Retailer 20
-
$3,858 USD
View
B
Retailer 21
-
$5,341 USD
View
Retailer 22
-
$5,619 USD
View
Price last confirmed 21 days ago
Most Expensive
Queensmith
2534856644 · Oct 28
$6,115 USD
£4,815 GBP
View
Price last confirmed 9 days ago
22 more retailers have this diamond
Prices start from $2,432 USDSave up to $2,909 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.

A
1.20ct Radiant
$2,432 USD