Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6522977444

Certificate GIA 6522977444

Diamond specifications and retailer prices

From $6,180 USD
Save $8,041 USD (57%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $14,221 USD at NZ Jewellers
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two 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 6522977444. Listed at 27 retailers, with prices from $6,180 to $14,221 at NZ Jewellers, a $8,041 spread on the same certified stone. 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

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522977444
Dimensions7.64 × 5.66 × 3.77 mm
L/W Ratio1.35
Top View
7.64 mm5.66 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522977444
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $9,115 USD|Low: $6,180 USD|High: $11,993 USD|Avg: $8,235 USD|-1.3%
Retailer 1
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Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
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Retailer 21
Retailer 22
October 1, 2026
Retailer 20$6,180 USD
Retailer 19$6,313 USD
Retailer 5$6,597 USD
Retailer 22$6,718 USD
Retailer 2$6,825 USD
Retailer 4$7,021 USD
Retailer 21$7,110 USD
Retailer 6$7,170 USD
Retailer 9$7,573 USD
Retailer 7$7,864 USD
Retailer 17$8,090 USD
Retailer 12$8,097 USD
Retailer 10$8,145 USD
Retailer 13$8,490 USD
Retailer 14$8,490 USD
Retailer 3$8,589 USD
Retailer 15$8,770 USD
Retailer 1$9,115 USD
Retailer 11$9,364 USD
Retailer 8$9,381 USD
Retailer 16$10,251 USD
Retailer 18$11,993 USD

36 data points across 22 retailers

27 retailers$6,180 USD to $14,221 USD

B+
Cheapest Retailer
-
$6,180 USD
B+
Retailer 2
-
$6,313 USD
View
B+
Retailer 3
-
$6,597 USD
View
B+
Retailer 4
-
$6,718 USD
View
B+
Retailer 5
-
$6,825 USD
View
B+
Retailer 6
-
$7,021 USD
CA$9,751 CAD
View
B+
Retailer 7
-
$7,110 USD
View
B+
Retailer 8
-
$7,110 USD
View
B+
Retailer 9
-
$7,170 USD
View
B
Retailer 10
-
$7,573 USD
View
B+
Retailer 11
-
$7,703 USD
View
B+
Retailer 12
-
$7,821 USD
View
B+
Retailer 13
-
$7,864 USD
View
B+
Retailer 14
-
$8,097 USD
A$12,456 AUD
View
B+
Retailer 15
-
$8,108 USD
£6,384 GBP
View
B
Retailer 16
-
$8,145 USD
View
B+
Retailer 17
-
$8,490 USD
View
B+
Retailer 18
-
$8,490 USD
View
B
Retailer 19
-
$8,589 USD
View
B
Retailer 20
-
$8,770 USD
View
Price last confirmed 12 days ago
B
Retailer 21
-
$8,888 USD
View
B
Retailer 22
-
$9,115 USD
€8,681 EUR
View
B
Retailer 23
-
$9,364 USD
View
B
Retailer 24
-
$9,381 USD
View
B
Retailer 25
-
$10,251 USD
ZAR 165,611 ZAR
View
B
Retailer 26
-
$11,993 USD
£9,443 GBP
View
Most Expensive
B
NZ Jewellers
187c7af1-6df5-4fe3-81b8-deb2d3b7cfab · Sep 30
$14,221 USD
View
26 more retailers have this diamond
Prices start from $6,180 USDSave up to $8,041 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.

B+
1.51ct Radiant
$6,180 USD