Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1553875487

Certificate GIA 1553875487

Diamond specifications and retailer prices

From $6,387 USD
HK$49,900 HKD
As of October 30, 2026
Save $8,220 USD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,607 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553875487. Listed at 11 retailers as of October 30, 2026, with prices from $6,387 to $14,607, a $8,220 spread on the same certified stone. NZ Jewellers lists it at $14,607. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553875487
Dimensions8.86 × 6.19 × 4.02 mm
L/W Ratio1.43
Key to symbols
Crystal, Feather, Needle
Top View
8.86 mm6.19 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553875487
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.0%

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: Oct 30
Current: $14,607 USD|Low: $6,387 USD|High: $15,208 USD|Avg: $9,077 USD|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10$6,387 USD
Retailer 7$7,120 USD
Retailer 2$7,199 USD
Retailer 3$7,552 USD
Retailer 11$7,726 USD
Retailer 4$8,196 USD
Retailer 8$8,734 USD
Retailer 9$8,868 USD
Retailer 6$9,486 USD
Retailer 5$12,236 USD
NZ Jewellers$14,607 USD

34 data points across 11 retailers

11 retailers$6,387 USD to $14,607 USD

A
Cheapest Retailer
-
$6,387 USD
HK$49,900 HKD
A
Retailer 2
-
$7,120 USD
View
A
Retailer 3
-
$7,199 USD
€6,856 EUR
View
Retailer 4
-
$7,552 USD
SGD 10,206 SGD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
$7,726 USD
View
B+
Retailer 6
-
$8,196 USD
£6,454 GBP
View
B+
Retailer 7
-
$8,734 USD
View
B+
Retailer 8
-
$8,868 USD
View
B+
Retailer 9
-
$9,486 USD
€9,034 EUR
View
B
Retailer 10
-
$12,236 USD
£9,635 GBP
View
Most Expensive
B
NZ Jewellers
03eb7318-4dbf-444e-9944-c8b39e425396 · Oct 30
$14,607 USD
View
10 more retailers have this diamond
Prices start from $6,387 USDSave up to $8,220 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
1.51ct Oval
$6,387 USD